B41J 19/62
For back spacing
Official title: for back spacing
B41J19/62 (For back spacing) appears on 4 US grants and 0 published applications in this corpus.
Search patents in B41J- Granted patents
- 4
- Published applications
- 0
- Assignees
- 4
- Inventors
- 5
- Latest grant
- 25 Oct 1994
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Keyboard with transversely activated non-alphanumeric keys25 Oct 1994US 5,358,343 AKeyboard Advancements, Inc.
- Ergonomically effective backspacing method1 Sep 1992US 5,143,462 AKeyboard Advances, Inc.
- Method for resetting the printing head of a typewriter21 Oct 1986US 4,618,275 AOlympia Werke AG
- Escapement mechanism and backspace mechanism for a moving paper carriage typewriter having dual pitch capability25 Aug 1981US 4,285,605 AInternational Business Machines Corporation
No published applications in this class yet.
Most cited
By later US patents
- Ergonomically effective backspacing method9US 5,143,462 AKeyboard Advances, Inc. · 1992
- Method for resetting the printing head of a typewriter8US 4,618,275 AOlympia Werke AG · 1986
- Keyboard with transversely activated non-alphanumeric keys8US 5,358,343 AKeyboard Advancements, Inc. · 1994
- Escapement mechanism and backspace mechanism for a moving paper carriage typewriter having dual pitch capability1US 4,285,605 AInternational Business Machines Corporation · 1981