US2208912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil regulating apparatus
Assignee: Individual
•
Filing: 1939-08-15
•
Granted: 1940-07-23
•
Expires: 1959-08-15
Abstract
No abstract record available.
Inventors
- 👤 Simpson Amber Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:57
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/06; F01M11/061; F16; F16N; F16N19/00; F16N19/006; F01M11/062; F01M11/065; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6579; Y10T137/7287; Y10T137/7358; Y10T137/7404; Y10T137/7413
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) | 1943-07-23 | 1944-01-22 | 1944-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-23 | 1948-01-22 | 1948-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-23 | 1952-01-22 | 1952-07-23 | $7700.00 | Window Closed / Lapsed |