US2911148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adding device
Assignee: —
•
Filing: —
•
Granted: 1959-11-03
•
Expires: 1976-11-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:45
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; A; A63; A63F; A63F5/00; A63F5/04; G09; G09B; G09B19/00; G09B19/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB550298A
Cited
US121687A
Cited
US384373A
Cited
US1361949A
Cited
US1600766A
Cited
US792410A
Cited
US929317A
Cited
US1235924A
Cited
US1507907A
Cited
US1940134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |