B41L 1/02
Devices for preparatory operations
Official title: Devices for preparatory operations, e.g. for bringing together sheets or webs and interposed carbons; Devices combined with devices for printing, for coating with carbon, for folding
B41L1/02 (Devices for preparatory operations) appears on 4 US grants and 0 published applications in this corpus.
Search patents in B41L- Granted patents
- 4
- Published applications
- 0
- Assignees
- 2
- Inventors
- 6
- Latest grant
- 22 Dec 1992
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multiple part identification card production22 Dec 1992US 5,173,080 AMoore Business Forms, Inc.
- Lock device for manifold forms25 Jul 1989US 4,850,947 AMoore Business Forms, Inc.
- Process and installation for the production of documentation16 Sep 1986US 4,611,799 A
- Form suitable for airline ticketing18 Dec 1979US 4,179,140 AWallace Business Forms, Inc.
No published applications in this class yet.
Most cited
By later US patents
- Process and installation for the production of documentation23US 4,611,799 A1986
- Multiple part identification card production14US 5,173,080 AMoore Business Forms, Inc. · 1992
- Lock device for manifold forms10US 4,850,947 AMoore Business Forms, Inc. · 1989
- Form suitable for airline ticketing1US 4,179,140 AWallace Business Forms, Inc. · 1979