Patent US2459862A successfully refreshed from Google Patents.
US2459862A
Expired / Lapsed
US
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Ten keylentry mechanism
Assignee: —
•
Filing: —
•
Granted: 1949-01-25
•
Expires: 1966-01-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:37
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70; G; G06; G06C; G06C7/00; G06C7/02; G06C7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932220A
Cited
US2250837A
Cited
US2365527A
Cited
US1253310A
Cited
US1326428A
Cited
GB497196A
Cited
US2343273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-25 | 1952-07-26 | 1953-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-25 | 1956-07-26 | 1957-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-25 | 1960-07-26 | 1961-01-25 | $7700.00 | Window Closed / Lapsed |