G03B 1/46
Rollers engaging face of film
Official title: Rollers engaging face of film, e.g. barrel, waisted, conical (gates G03B1/48)
G03B1/46 (Rollers engaging face of film) appears on 5 US grants and 0 published applications in this corpus.
Search patents in G03B- Granted patents
- 5
- Published applications
- 0
- Assignees
- 5
- Inventors
- 13
- Latest grant
- 18 Jan 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Straight through lateral constraint18 Jan 1994US 5,279,454 AEastman Kodak Company
- Film take-up spool30 Jun 1981US 4,275,855 ANippon Kogaku K. K.
- Film winding device for slide projectors2 Oct 1979US 4,169,669 AShinano Kikaku Company Limited
- Film strip joint for continuous projection16 Jan 1979US 4,134,526 ASoding TV GmbH & Co. Bild & Ton International
- Continuous microfilming camera17 Aug 1976US 3,975,749 AAgfa-Gevaert
No published applications in this class yet.
Most cited
By later US patents