US1980336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck retaining means
Assignee: Pratt and Whitney Co Inc
•
Filing: 1933-05-17
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Granted: 1934-11-13
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Expires: 1953-05-17
Abstract
No abstract record available.
Inventors
- 👤 Frank O Hoagland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/12; F; F16; F16B; F16B2200/00; F16B2200/69; F16B2200/73; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T279/17; Y10T279/17923; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102; Y10T82/00; Y10T82/25; Y10T82/2552; Y10T82/2562
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-11-12 | 1938-05-14 | 1938-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-12 | 1942-05-14 | 1942-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-12 | 1946-05-14 | 1946-11-13 | $7700.00 | Window Closed / Lapsed |