US2010430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Standard Oil Development Co
•
Filing: 1932-03-17
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Granted: 1935-08-06
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Expires: 1952-03-17
Abstract
No abstract record available.
Inventors
- 👤 Frank A Howard
- 👤 David A Shepard
- 👤 Harold W Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/10; B; B01; B01D; B01D27/00; B01D27/02; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/50; B01D29/56; B01D29/58; B01D35/00; B01D35/02; B01D35/14; B01D2201/00; B01D2201/18; B01D2201/182
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) | 1938-08-05 | 1939-02-04 | 1939-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-08-05 | 1943-02-04 | 1943-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-08-05 | 1947-02-04 | 1947-08-06 | $7700.00 | Window Closed / Lapsed |