Patent US2693708A successfully refreshed from Google Patents.
US2693708A
Expired / Lapsed
US
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Lever system
Assignee: Individual
•
Filing: 1952-09-30
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Granted: 1954-11-09
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Expires: 1972-09-30
Abstract
No abstract record available.
Inventors
- 👤 Sr Walter S Baer
- 👤 Max W Baer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:44
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/02; B64F1/029; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18992; Y10T74/20; Y10T74/20558; Y10T74/2057; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2132338A
Cited
US2087885A
Cited
US2222551A
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US2427623A
Cited
US2539913A
Cited
US2492200A
Cited
US2598674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |