Patent US3485575A successfully refreshed from Google Patents.
Patent US2117746A successfully refreshed from Google Patents.
US2117746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck
Assignee: Ingersoll Rand Co
•
Filing: 1936-06-25
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Granted: 1938-05-17
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Expires: 1956-06-25
Abstract
No abstract record available.
Inventors
- 👤 Roy M Seawright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:45
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/08; B25D17/084; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17042; Y10T279/17076; Y10T279/17564; Y10T279/17598
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) | 1941-05-16 | 1941-11-15 | 1942-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-05-16 | 1945-11-15 | 1946-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-05-16 | 1949-11-15 | 1950-05-17 | $7700.00 | Window Closed / Lapsed |