US2442672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust-preventive hydrocarbon compositions
Assignee: Shell Development Co
•
Filing: 1941-02-18
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Granted: 1948-06-01
•
Expires: 1961-02-18
Abstract
No abstract record available.
Inventors
- 👤 Fuchs George Hugo Von
- 👤 Norman B Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:36
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10M; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/38; C10M129/42; C10L1/182; C10L1/183; C10L1/1832; C10L1/188; C10L1/1881; C10L1/1883; C10L1/22; C10L1/222; C10L1/223; C10L1/2235; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/14; C10M2207/142; C10M2207/22; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/065; C10M2215/20; C10M2215/202; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2219/086; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2031930A
Cited
US2009480A
Cited
US2124628A
Cited
US2133734A
Cited
US2281676A
Cited
US2261888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |