US2750808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical devices
Assignee: —
•
Filing: —
•
Granted: 1956-06-19
•
Expires: 1973-06-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:55
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/10; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87515; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20558; Y10T74/20576; Y10T74/20582; Y10T74/20588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US559192A
Cited
US621193A
Cited
US1024941A
Cited
US1522421A
Cited
US1555921A
Cited
US1916278A
Cited
US2485192A
Cited
US2454981A
Cited
US2597379A
Cited
US2595650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |