US3219679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiolcarboxylic acid esters and preparation thereof
Assignee: Dow Chemical Co
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Filing: 1961-03-29
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Granted: 1965-11-23
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Expires: 1981-03-29
Abstract
No abstract record available.
Inventors
- 👤 Gilbert H Berezin
- 👤 Guy H Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:10
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/68; C07C; C07C327/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |