B21F 45/22
Of paper fasteners or clips
Official title: of paper fasteners or clips (staples B21F45/24)
B21F45/22 (Of paper fasteners or clips) appears on 5 US grants and 0 published applications in this corpus.
Search patents in B21F- Granted patents
- 5
- Published applications
- 0
- Assignees
- 2
- Inventors
- 6
- Latest grant
- 2 Jun 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 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 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process of manufacturing an aneurysm clip2 Jun 1998US 5,758,420 AFlorida Hospital Supplies, Inc.
- Wire feeding and wire forming device for paper clip making machine6 Mar 1984US 4,434,818 A
- Apparatus for making paper clips12 Jan 1982US 4,310,032 ADextrous Engineering & Sales Corp.
- Universal clip and structure for making same23 Jun 1981US 4,274,450 A
- Method and apparatus for forming wire to noncircular cross sections6 Nov 1979US 4,173,235 A
No published applications in this class yet.
Most cited
By later US patents
- Process of manufacturing an aneurysm clip100US 5,758,420 AFlorida Hospital Supplies, Inc. · 1998
- Method and apparatus for forming wire to noncircular cross sections13US 4,173,235 A1979
- Apparatus for making paper clips3US 4,310,032 ADextrous Engineering & Sales Corp. · 1982
- Wire feeding and wire forming device for paper clip making machine2US 4,434,818 A1984
- Universal clip and structure for making same1US 4,274,450 A1981