US2910439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibited compositions
Assignee: Standard Oil Co
•
Filing: 1955-12-22
•
Granted: 1959-10-27
•
Expires: 1975-12-22
Abstract
No abstract record available.
Inventors
- 👤 Ellis K Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:20
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/32; C10M135/36; C10M2201/00; C10M2201/04; C10M2201/043; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/04; C10M2225/041; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/12; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A COMPOSITION NON-CORROSIVE TO SILVER AND HAVING SILVER CORROSION INHIBITING PROPERTIES CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF AN OIL CONTAINING A COMPOUND NORMALLY CORROSIVE TO SILVER AND FROM ABOUT 0.02% TO ABOUT 10% OF AN OIL-SOLUBLE AMINE SALT OF 2,5-DIMERCAPTO-1,3,4-THIADIAZOLE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
45 words
A COMPOSITION NON-CORROSIVE TO SILVER AND HAVING SILVER CORROSION INHIBITING PROPERTIES CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF AN OIL CONTAINING A COMPOUND NORMALLY CORROSIVE TO SILVER AND FROM ABOUT 0.02% TO ABOUT 10% OF AN OIL-SOLUBLE AMINE SALT OF 2,5-DIMERCAPTO-1,3,4-THIADIAZOLE HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2690999A
Cited
US2765289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |