US2832741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color stabilization of bright stock
Assignee: Gulf Oil Corp
•
Filing: 1954-08-26
•
Granted: 1958-04-29
•
Expires: 1974-08-26
Abstract
No abstract record available.
Inventors
- 👤 Ralph I Gottshall
- 👤 John G Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:38
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/108; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A COLOR STABILIZED BRIGHT STOCK CONTAINING BETWEEN APPROXIMATELY .01 AND 0.1 PERCENT BY WEIGHT OF AN AMINE HAVING THE FORMULA R-NH2 IN WHICH R IS A TERTIARY ALKYL GROUP CONTAINING 12 TO 24 CARBON ATOMS WHICH IS ATTACHED TO THE AMINO GROUP BY THE TERITARY CARBON ATOM.
Claim 2
Dependent Claim
47 words
A COLOR STABILIZED BRIGHT STOCK CONTAINING BETWEEN APPROXIMATELY .01 AND 0.1 PERCENT BY WEIGHT OF AN AMINE HAVING THE FORMULA R-NH2 IN WHICH R IS A TERTIARY ALKYL GROUP CONTAINING 12 TO 24 CARBON ATOMS WHICH IS ATTACHED TO THE AMINO GROUP BY THE TERITARY CARBON ATOM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |