US2674664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1950-04-17
•
Granted: 1954-04-06
•
Expires: 1970-04-17
Abstract
No abstract record available.
Inventors
- 👤 Roy E Clubb
- 👤 Joseph P Vennari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:40
CPC Classifications
G; G04; G04F; G04F3/00; G04F3/02; G04F3/027; H; H01; H01H; H01H7/00; H01H7/08; H01H7/10; H01H7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1150514A
Cited
US1622002A
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US1735540A
Cited
US1870185A
Cited
GB358228A
Cited
US1916665A
Cited
US2302110A
Cited
US2360157A
Cited
US2530985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |