US2916949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential timing device mechanism
Assignee: Seneca Falls Machine Co
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Filing: 1957-09-04
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Granted: 1959-12-15
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Expires: 1977-09-04
Abstract
No abstract record available.
Inventors
- 👤 Edwin R Smith
- 👤 Constantine F Cafolla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:33
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/34; B23Q5/38; B23Q5/40; B23Q5/402; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T82/00; Y10T82/25; Y10T82/2531
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |