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US1920161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant
Assignee: Individual
•
Filing: 1931-12-14
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Granted: 1933-07-25
•
Expires: 1951-12-14
Abstract
No abstract record available.
Inventors
- 👤 Harold M Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:40
CPC Classifications
C; C10; C10M; C10M101/00; C10M101/02; C10M101/025; C10M101/04; C10M2203/00; C10M2203/10; C10M2203/1006; C10M2203/102; C10M2203/1025; C10M2203/104; C10M2203/1045; C10M2203/106; C10M2203/1065; C10M2203/108; C10M2203/1085; C10M2205/00; C10M2205/14; C10M2205/143; C10M2205/16; C10M2205/163; C10M2205/17; C10M2205/173; C10M2205/18; C10M2205/183; C10M2207/00; C10M2207/40; C10M2207/401; C10M2207/404; C10M2207/4045
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) | 1936-07-24 | 1937-01-23 | 1937-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-24 | 1941-01-23 | 1941-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-24 | 1945-01-23 | 1945-07-25 | $7700.00 | Window Closed / Lapsed |