US2570050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation products of tertiary alkyl mercaptans and alkylene oxides
Assignee: Standard Oil Development Co
•
Filing: 1945-07-26
•
Granted: 1951-10-02
•
Expires: 1965-07-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence T Eby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:52
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07C; C07C323/00; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2221/00; C10M2221/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
BETA (TERTIARY-ALKYL THIO) ETHANOLS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
8 words
BETA (TERTIARY-ALKYL THIO) ETHANOLS HAVING THE GENERAL FORMULA
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) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |