US3200689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyboard
Assignee: Individual
•
Filing: 1964-04-02
•
Granted: 1965-08-17
•
Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Paul S Rosberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:05
CPC Classifications
G; G10; G10C; G10C3/00; G10C3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A KEYBOARD COMPRISING A SINGLE ROW OF KEYS IN SIDE BY SIDE RELATION, ELEMENTS SELECTIVELY OPERABLE BY SAID KEYS, MEANS RESPONSIVE TO THE DEPRESSION OF ONE PAIR OF LATERALLY ADJACENT KEYS FOR ACTUATING ONE OF SAID ELEMENTS AND MEANS RESPONSIVE TO THE DEPRESSION OF A SECOND PAIR OF LATERALLY ADJACENT KEYS FOR ACTUATING ANOTHER OF SAID ELEMENTS, ONE OF THE DEPRESSED KEYS BEING COMMON TO SAID FIRST AND SECOND PAIR OF KEYS.
Claim 2
Dependent Claim
72 words
A KEYBOARD COMPRISING A SINGLE ROW OF KEYS IN SIDE BY SIDE RELATION, ELEMENTS SELECTIVELY OPERABLE BY SAID KEYS, MEANS RESPONSIVE TO THE DEPRESSION OF ONE PAIR OF LATERALLY ADJACENT KEYS FOR ACTUATING ONE OF SAID ELEMENTS AND MEANS RESPONSIVE TO THE DEPRESSION OF A SECOND PAIR OF LATERALLY ADJACENT KEYS FOR ACTUATING ANOTHER OF SAID ELEMENTS, ONE OF THE DEPRESSED KEYS BEING COMMON TO SAID FIRST AND SECOND PAIR OF KEYS.
References Cited (Backward Citations)
US1680582A
Cited
US1958227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |