B41L 3/04
Bars provided with pins engaging perforations in the elements
B41L3/04 (Bars provided with pins engaging perforations in the elements) appears on 6 US grants and 0 published applications in this corpus.
Search patents in B41L- Granted patents
- 6
- Published applications
- 0
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 19 Oct 1993
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Portable writing apparatus19 Oct 1993US 5,254,037 AREP Industries, Inc.
- Record keeping assembly having locating posts and peel strip14 Aug 1990US 4,948,173 AData Management, Inc.
- One-write book assembly with removable insert10 Jul 1990US 4,940,257 AData Management, Inc.
- Spring actuated clamp18 Aug 1987US 4,687,229 AR. E. P. Industries Inc.
- Posting board7 Feb 1984US 4,429,901 AREP Industries, Inc.
No published applications in this class yet.
Most cited
By later US patents