Patent US1200439A successfully refreshed from Google Patents.
US1200439A
Expired / Lapsed
US
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Keyboard for type-writing or analogous machines.
Assignee: Individual
•
Filing: 1912-10-09
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Granted: 1916-10-03
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Expires: 1932-10-09
Abstract
No abstract record available.
Inventors
- 👤 William F Kemble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:42
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/0202; G06F3/0219; H; H01; H01H; H01H2217/00; H01H2217/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1919-10-03 | 1920-04-03 | 1920-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-10-03 | 1924-04-03 | 1924-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-10-03 | 1928-04-03 | 1928-10-03 | $7700.00 | Window Closed / Lapsed |