US2763616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylthiohydroquinones-formaldehyde-amine reaction products and petroleum fractions, containing the same
Assignee: ExxonMobil Oil Corp
•
Filing: 1952-05-24
•
Granted: 1956-09-18
•
Expires: 1972-05-24
Abstract
No abstract record available.
Inventors
- 👤 John W Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:33
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2493; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10N; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
21 words
A PETROLEUM LUBRICATING OIL CONTAINING A MINOR AMOUNT, SUFFICIENT TO STABILIZE SAID OIL AGAINST OXIDATION, OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
21 words
A PETROLEUM LUBRICATING OIL CONTAINING A MINOR AMOUNT, SUFFICIENT TO STABILIZE SAID OIL AGAINST OXIDATION, OF A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
11 words
AS A NEW COMPOSITION OF MATTER, A COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
11 words
AS A NEW COMPOSITION OF MATTER, A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2553441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |