F41A 3/62
Breech mechanisms: using combustion gas pressure for adding to the mechanical locking
Official title: using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement
F41A3/62 (Breech mechanisms: using combustion gas pressure for adding to the mechanical locking) appears on 23 US grants and 20 published applications in this corpus.
Search patents in F41A- Granted patents
- 23
- Published applications
- 20
- Assignees
- 8
- Inventors
- 30
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
| 2022 | 1 | 4 |
| 2023 | 3 | 1 |
| 2024 | 1 | 3 |
| 2025 | 1 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Roller and bearing delayed firearm operating systems9 Jul 2026US 2026/0194320 A1
- Bearing delayed firearm operating systems28 Aug 2025US 2025/0271228 A1
- A firearm26 Dec 2024US 2024/0426564 A1
- Roller and bearing delayed firearm operating systems17 Oct 2024US 2024/0344788 A1
- Firearm29 Aug 2024US 2024/0288236 A1
Most cited
By later US patents
- Automatic or semi-automatic firearm42US 4,019,423 A1977
- Silencer32US 5,078,043 A1992
- Self cleaning automatic machine pistol and silencer for the same27US 4,977,815 A1990
- Micro-precision timed firing handgun23US 4,028,994 A1977
- Machine pistol with retarded blowback23US 4,579,037 AWeapon Technology Systems R & D, Ltd. · 1986