Patent US279497A successfully refreshed from Google Patents.
Patent US1977247A successfully refreshed from Google Patents.
US1977247A
Expired / Lapsed
US
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Assignee: Standard Oil Co
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Filing: 1932-11-07
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Granted: 1934-10-16
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Expires: 1952-11-07
Abstract
No abstract record available.
Inventors
- 👤 William H Scott
- 👤 Jesse C Ducommun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:15
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/14; C10G9/18; C10G9/20; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
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) | 1937-10-15 | 1938-04-16 | 1938-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-15 | 1942-04-16 | 1942-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-15 | 1946-04-16 | 1946-10-16 | $7700.00 | Window Closed / Lapsed |