Portion Packaging Limited
Rexdale, CA· latest recorded location
Portion Packaging Limited is named on 3 US grants and 0 published applications in this corpus. Its most frequent classification is B65B (Machines, apparatus or devices for, or methods of, packaging articles or materials).
- Granted patents
- 3
- Published applications
- 0
- Inventors
- 2
- Granted in 2026 so far
- 0
- Most recent grant
- 20 Sep 1977
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
By publication year.
Technology areas
Share of 3 documents
- B65BMachines, apparatus or devices for, or methods of, packaging articles or materials3
- B29CShaping or joining of plastics2
- B31BMaking containers of paper, cardboard or material worked in a manner analogous1
- Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1
Recent patents
- Process for the production of a product filled container20 Sep 1977US 4,048,781 A
- Cartonning apparatus6 Jul 1976US 3,967,434 A
- Apparatus for the production of a product filled container22 Jun 1976US 3,964,237 A
No published applications.
Most cited
By later US patents