G03B 21/326
Means for fixing the film on the axis of a reel or
Official title: {Means for fixing the film on the axis of a reel or spindle}
G03B21/326 (Means for fixing the film on the axis of a reel or) appears on 8 US grants and 0 published applications in this corpus.
Search patents in G03B- Granted patents
- 8
- Published applications
- 0
- Assignees
- 4
- Inventors
- 15
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Projection device23 Jun 2026US 12,663,699 B1
- Projector7 Aug 2018US 10,042,238 B1Gemmy Industries Corporation
- Pinch spools one-time use cameras apparatus and methods10 Dec 2002US 6,491,246 B1Eastman Kodak Company
- Method and apparatus for snap-action, split-core roller clamp12 Sep 1995US 5,449,126 A
- Film retention core for film holders30 May 1995US 5,419,510 AGreat Lakes Technologies Corporation
No published applications in this class yet.
Most cited
By later US patents
- Film spool with separate keeper6US 4,974,788 AEastman Kodak Company · 1990
- Pinch spools one-time use cameras apparatus and methods6US 6,491,246 B1Eastman Kodak Company · 2002
- Projector5US 10,042,238 B1Gemmy Industries Corporation · 2018
- Core for film spool2US 4,901,936 AAgfa-Gevaert · 1990
- Means and method for changing a portion of a movie film2US 4,967,975 A1990