US2947731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylbenzyl thiolesters of carboxylic acids and polymers thereof
Assignee: Dow Chemical Co
•
Filing: 1957-04-04
•
Granted: 1960-08-02
•
Expires: 1977-04-04
Abstract
No abstract record available.
Inventors
- 👤 William R Nummy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:00
CPC Classifications
C; C07; C07C; C07C327/00; C08; C08F; C08F8/00; C08F8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A VINYLBENZYL THIOLESTER HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
11 words
A POLYMER COMPRISING VINYLBENZYL THIOL CHEMICALLY COMBINED IN THE POLYMER MOLECULE.
References Cited (Backward Citations)
US2378535A
Cited
US2259869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |