US2749771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pedal elevators
Assignee: DARWIN PRODUCTS Inc
•
Filing: 1954-08-16
•
Granted: 1956-06-12
•
Expires: 1974-08-16
Abstract
No abstract record available.
Inventors
- 👤 Daniel M Pearl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:55
CPC Classifications
B; B62; B62M; B62M3/00; B62M3/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20888; Y10T74/209; Y10T74/21; Y10T74/2164; Y10T74/2168
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US363522A
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US1213825A
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US1679168A
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US1996249A
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US2078324A
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US2461135A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |