US2387537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fatty amine salts of alkyl phosphoric acids
Assignee: Gulf Oil Corp
•
Filing: 1945-03-19
•
Granted: 1945-10-23
•
Expires: 1965-03-19
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:56
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2658; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/11; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10N; C10N2030/00; C10N2030/12; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1948-10-22 | 1949-04-23 | 1949-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-22 | 1953-04-23 | 1953-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-22 | 1957-04-23 | 1957-10-23 | $7700.00 | Window Closed / Lapsed |