A47G 2029/1229
Activated by the letter flap
Official title: {activated by the letter flap}
A47G2029/1229 (Activated by the letter flap) appears on 10 US grants and 6 published applications in this corpus.
Search patents in A47G- Granted patents
- 10
- Published applications
- 6
- Assignees
- 4
- Inventors
- 17
- Latest grant
- 7 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mailbox notification apparatus7 Mar 2023US 11,596,254 B2
- Mailbox with detection means13 Mar 2018US 9,913,555 B2Italmek S.R.L.
- Mail delivery tracking system and apparatus4 Jan 2011US 7,864,052 B2Lyngsoe Systems Limited
- Device for detecting and signalling or indicating status as regards contents in a container, and in particular a letterbox13 Aug 2002US 6,433,684 B1Euro-Tech AS
- Mail box signal device9 Sep 1997US 5,664,728 A
- Aumano: Automatic Mail Notification System Using ESP-NOW Protocol17 Sep 2026US 2026/0272202 A1
- Mailbox notification apparatus1 Dec 2022US 2022/0378236 A1
- Maileybox system and method3 Mar 2022US 2022/0061571 A1
- Mailbox with detection means20 Apr 2017US 2017/0105564 A1Italmek S.R.L.
- Mail Delivery Tracking System and Apparatus14 Aug 2008US 2008/0191877 A1Lyngsoe Systems Limited
Most cited
By later US patents
- Security mailbox30US 3,935,994 A1976
- Security mailbox20US 4,154,393 A1979
- Device for detecting and signalling or indicating status as regards contents in a container, and in particular a letterbox18US 6,433,684 B1Euro-Tech AS · 2002
- Mail box signal device14US 5,664,728 A1997
- Mail slot alarm8US 5,382,945 A1995