US3103272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power action for typewriter
Assignee: Unisys Corp
•
Filing: 1959-09-09
•
Granted: 1963-09-10
•
Expires: 1979-09-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Roggenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:18
CPC Classifications
B; B41; B41J; B41J7/00; B41J7/92; B41J23/00; B41J23/02; B41J23/04; B41J23/06; B41J5/00; B41J5/08; B41J5/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN A WRITING MACHINE, A KEYBOARD ACTION, A TYPE BAR ASSEMBLY, A POWER MECHANISM BETWEEN THE KEYBOARD ACTION AND SAID TYPE BAR ASSEMBLY INCLUDING A POWER RING AND A DRIVE SHAFT, SAID RING BEING POSITIVELY CONNECTABLE WITH SAID SHAFT FOR ROTATIVE MOVEMENT COAXIAL WITH SAID SHAFT, AND MEANS INCLUDING A PAWL MEMBER CARRIED BY SAID RING AND ENGAGEABLE WITH A TOOTH OF SAID SHAFT CONTROLLED BY SAID KEYBOARD ACTION FOR OPERATIVELY CONNECTING SAID POWER RING TO SAID DRIVE SHAFT TO ACTUATE SAID TYPE BAR ASSEMBLY.
Claim 2
Dependent Claim
85 words
IN A WRITING MACHINE, A KEYBOARD ACTION, A TYPE BAR ASSEMBLY, A POWER MECHANISM BETWEEN THE KEYBOARD ACTION AND SAID TYPE BAR ASSEMBLY INCLUDING A POWER RING AND A DRIVE SHAFT, SAID RING BEING POSITIVELY CONNECTABLE WITH SAID SHAFT FOR ROTATIVE MOVEMENT COAXIAL WITH SAID SHAFT, AND MEANS INCLUDING A PAWL MEMBER CARRIED BY SAID RING AND ENGAGEABLE WITH A TOOTH OF SAID SHAFT CONTROLLED BY SAID KEYBOARD ACTION FOR OPERATIVELY CONNECTING SAID POWER RING TO SAID DRIVE SHAFT TO ACTUATE SAID TYPE BAR ASSEMBLY.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |