US2283931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust preventive compound
Assignee: Individual
•
Filing: 1940-03-21
•
Granted: 1942-05-26
•
Expires: 1960-03-21
Abstract
No abstract record available.
Inventors
- 👤 Ernest R Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/06; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/289; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/24; C10M2215/26; C10N; C10N2030/00; C10N2030/12
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) | 1945-05-25 | 1945-11-24 | 1946-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-05-25 | 1949-11-24 | 1950-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-05-25 | 1953-11-24 | 1954-05-26 | $7700.00 | Window Closed / Lapsed |