US3356296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyboard interlocking arrangement
Assignee: Wirth Gallo and Co
•
Filing: 1966-12-20
•
Granted: 1967-12-05
•
Expires: 1986-12-20
Abstract
No abstract record available.
Inventors
- 👤 Wirth Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:09
CPC Classifications
G; G05; G05G; G05G5/00; G05G5/06; G05G5/08; G06; G06C; G06C7/00; G06C7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A KEYBOARD INTERLOCKING ARRANGEMENT COMPRISING, A PLURALITY OF SUCCESSIVELY NUMBERED KEYS MOUNTED ON LSHAPED KEY LEVER PIVOTALLY MOUNTED ON PINS, EACH OF SAID L-SHAPED KEY LEVERS HAVING A LONG ARMS PROVIDED WITH AN ABUTMENT FACE AND A SHORTER HORIZONTAL ARM CARRYING A LATERAL ABUTMENT, SPRING MEANS FOR ENGAGING AN END OF EACH OF SAID LONG ARMS OPERATING TO RETAIN AND L-SHAPED KEY LEVER IN ONE OF TWO STABLE POSITIONS, A DEFLECTABLY MOUNTED LOCKING LEVER MEANS CARRIED BY EACH OF SAID L-SHAPED KEY LEVERS FOR RESTORING KEYS DIRECTLY ADJACENT TO A DEPRESSED KEY TO THEIR ZERO POSITION, AND ROTATABLY MOUNTED TRANSFER MEANS SUPPORTED BY EACH OF SAID DEFLECTABLY MOUNTED LOCKING MEANS FOR APPLYING THE ACTION
Claim 2
Dependent Claim
114 words
A KEYBOARD INTERLOCKING ARRANGEMENT COMPRISING, A PLURALITY OF SUCCESSIVELY NUMBERED KEYS MOUNTED ON LSHAPED KEY LEVER PIVOTALLY MOUNTED ON PINS, EACH OF SAID L-SHAPED KEY LEVERS HAVING A LONG ARMS PROVIDED WITH AN ABUTMENT FACE AND A SHORTER HORIZONTAL ARM CARRYING A LATERAL ABUTMENT, SPRING MEANS FOR ENGAGING AN END OF EACH OF SAID LONG ARMS OPERATING TO RETAIN AND L-SHAPED KEY LEVER IN ONE OF TWO STABLE POSITIONS, A DEFLECTABLY MOUNTED LOCKING LEVER MEANS CARRIED BY EACH OF SAID L-SHAPED KEY LEVERS FOR RESTORING KEYS DIRECTLY ADJACENT TO A DEPRESSED KEY TO THEIR ZERO POSITION, AND ROTATABLY MOUNTED TRANSFER MEANS SUPPORTED BY EACH OF SAID DEFLECTABLY MOUNTED LOCKING MEANS FOR APPLYING THE ACTION
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |