US3112338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of hydroxybenzoic acids
Assignee: Shell USA Inc
•
Filing: 1961-02-13
•
Granted: 1963-11-26
•
Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Edgar J Smutny
- 👤 Paul H Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:54
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/06; C09K15/08; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134; C08K5/1345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
P-OCTYLPHENYL 3,5-DI-TERT-BUTY-4-HYDROXYBENZOATE.
Claim 2
Dependent Claim
2 words
P-OCTYLPHENYL 3,5-DI-TERT-BUTY-4-HYDROXYBENZOATE.
References Cited (Backward Citations)
US2079487A
Cited
US2198582A
Cited
US2350326A
Cited
US2464172A
Cited
US2910454A
Cited
US3029276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |