Patent US2898301A successfully refreshed from Google Patents.
US2898301A
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Rust preventive compositions
Assignee: GAF Chemicals Corp
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Filing: 1956-11-30
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Granted: 1959-08-04
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Expires: 1976-11-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Mayhew
- 👤 Joseph P Copes
- 👤 Earl P Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:03
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/145; C10; C10M; C10M1/00; C10M1/08; C07; C07C; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/26; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
AN ANIT-RUST COMPOSITION COMPRISING A FLUID PETROLEUM HYDROCARBON CONTAINING IN A RUST INHIBITING AMOUNT OF AT LEAST ONE N-SUBSTITUTED-Y-HYDROCARBOXYLIC ACID AMIDE HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
25 words
AN ANIT-RUST COMPOSITION COMPRISING A FLUID PETROLEUM HYDROCARBON CONTAINING IN A RUST INHIBITING AMOUNT OF AT LEAST ONE N-SUBSTITUTED-Y-HYDROCARBOXYLIC ACID AMIDE HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2548156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |