G03B 17/44
Means for exchanging focusing screen and light sensitive material
G03B17/44 (Means for exchanging focusing screen and light sensitive material) appears on 7 US grants and 3 published applications in this corpus.
Search patents in G03B- Granted patents
- 7
- Published applications
- 3
- Assignees
- 7
- Inventors
- 8
- Latest grant
- 18 Oct 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 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 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Display element, display device, and camera18 Oct 2011US 8,040,316 B2Nikon Corporation
- Digital camera system with interchangeable lens assembly1 Sep 2009US 7,583,893 B2FUJIFILM Corporation
- Lens barrel24 Jul 2007US 7,248,422 B2Fujinon Corporation
- Camera back for a camera28 Jan 2003US 6,512,889 B1
- Underwater camera having through-the-lens viewing24 Nov 1992US 5,166,714 A
Most cited
By later US patents
- Digital camera system with interchangeable lens assembly10US 7,583,893 B2FUJIFILM Corporation · 2009
- Lens barrel2US 7,248,422 B2Fujinon Corporation · 2007
- Combination focussing screen and film holder attachment1US 4,149,791 APolaroid Corporation · 1979
- Instant film color back adaptor for a camera-processor1US 4,213,695 AItek Corporation · 1980
- Underwater camera having through-the-lens viewing1US 5,166,714 A1992