# US 2023/0406579 A1 · Containers and methods of using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0406579 A1 - Document ID: US20230406579A1 - Status: Published application - Kind: A1 - Application number: 18/036,124 - Filed: 2021-11-10 - Published: 2023-12-21 - Earliest claimed: 2020-11-10 - Assignees: CR Packaging LLC - Applicants: Cr Packaging LLC - Inventors: Simon KNOBEL; David Tai Wai LEUNG; Peter Gustav ANDERSSON; Colette Eugenie BAZIRGAN; Manuel Armata CORDEIRO; Robert Jake RENZI - Web page: https://patentgrep.com/patent/US20230406579A1 ## CPC - B65D 1/10: Jars, e.g. for preserving foodstuffs {(B65D81/3837 takes precedence)} - B65D 43/0212: {only on the outside, or a part turned to the outside, of the mouth (B65D43/0206 takes precedence)} - B65D 50/04: requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one ({B65D50/061} takes precedence) - B65D 81/30: by excluding light or other outside radiation (wrappers B65D65/16) - B65D 2543/00296: Plastic - B65D 2543/00527: NO contact - B65D 2543/00537: on the outside, or a part turned to the outside of the mouth of the container - B65D 2543/0062: Groove or hollow bead - B65D 2543/00629: Massive bead - B65D 2543/00685: Totality - B65D 2543/0074: Massive bead - B65D 2543/00796: Totality - B65D 2543/00805: Segments - B65D 2543/00953: Sealing means - B65D 2543/00972: Collars or rings - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES ## Abstract Disclosed herein are containers. Also disclosed are methods using the containers and methods of storing substances in containers. The containers have a glass base and a plastic cap and provide for child-resistant containers. A user can releasably remove the cap from base. For example, the user squeezes opposite corners of the container cap, which releases a locking mechanism and allows for removal of the cap by lifting or pulling the container cap off from the container base. ## Claims ### Claim 1 A container comprising: (a) a container base comprising: a closed bottom end; an open top end; a first undercut and a second undercut positioned on the base; and (b) a container cap comprising a first engagement feature and a second engagement feature, wherein the first engagement feature is configured to secures to the first undercut and the second engagement feature is configured to secure to the second undercut. ### Claim 2 (depends on 1) The container of claim 1 wherein the first undercut and second undercut are on opposed sides of the base. ### Claim 3 (depends on 1) The container of claim 1 wherein the first undercut and second undercut are on opposite corners of the base. ### Claim 4 (depends on 1) The container of claim 1 wherein the first engagement feature is configured to provide a locking engagement with the first undercut. ### Claim 5 (depends on 1) The container of claim 1 wherein the second engagement feature is configured to provide a locking engagement with the second undercut. ### Claim 6 (depends on 1) The container of claim 1 wherein the container comprises an engagement element in addition to the first and second engagement features and first and second undercuts. ### Claim 7 (depends on 6) The container of claim 6 wherein the additional engagement element comprises a locking bar. ### Claim 8 (depends on 6) The container of claim 6 wherein the additional engagement element comprises one or more teeth elements. ### Claim 9 A container comprising: (a) a container base comprising: a closed bottom end; an open top end; one or more locking bar elements on the base; and (b) a container cap comprising one or more engagement features that mate with the one or more locking bar elements. ### Claim 10 (depends on 9) The container of claim 9 wherein a locking bar element extends vertically from the container base. ### Claim 11 (depends on 9) The container of claim 9 wherein the container base comprises a single pair of locking bar elements. ### Claim 12 (depends on 9) The container of claim 9 wherein the container base comprises an opposed pair of locking bar elements. ### Claim at position 13 13-14. (canceled) ### Claim 15 A container comprising: (a) a container base comprising: a closed bottom end; an open top end; and (b) a container cap that releaseably mates with the container base. wherein one of the base or cap comprises a tab portion, and the other of the base or cap comprises an engagement feature configured to mate with the tab portion. ### Claim 16 (depends on 15) The container of claim 15 wherein the tab portion is a releasable latch element. ### Claim 17 (depends on 15) The container of claim 15 wherein the cap comprises one or more tab portions and the base comprises one or more engagement features configured to mate with the tab portion. ### Claim at position 17 18-25. (canceled) ### Claim 26 A container comprising: (a) a container base comprising: a closed bottom end; an open top end; one or more locking bar elements on the base; and (b) a rounded container cap comprising one or more engagement features that mate with the one or more locking bar elements. ### Claim at position 19 27-28. (canceled) ### Claim 29 (depends on 26) The container of claim 26 wherein a locking bar element extends vertically from the container base. ### Claim at position 21 30-33. (canceled) ### Claim 34 A container comprising: (a) a container base comprising: a closed bottom end; an open top end; and (b) a cap that releasable engages with the container base upon engaging the base and cap, wherein at least one of the base or cap comprises an inner layer that provides enhanced engagement of the cap and base. ### Claim at position 23 35-45. (canceled) ### Claim 46 (depends on 1) The container of claim 1 wherein the container base cross-sectional shape is substantially square. ### Claim at position 25 47-54. (canceled) ### Claim 55 (depends on 1) The container of claim 1 wherein the base is substantially composed of glass. ### Claim at position 27 56-57. (canceled)