US2447288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary aliphatic amine salts of dialiphatic substituted mono-thiophosphoric acids
Assignee: Gulf Oil Corp
•
Filing: 1946-03-06
•
Granted: 1948-08-17
•
Expires: 1966-03-06
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
- 👤 Mark L Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:59
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/17; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C10M171/00; C10M171/004; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/047; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2063629A
Cited
US2167867A
Cited
US2252984A
Cited
US2344392A
Cited
US2368000A
Cited
US2346155A
Cited
US2389718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |