Patent US3303209A successfully refreshed from Google Patents.
US3303209A
Expired / Lapsed
US
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Method of making phenolic thioethers
Assignee: Dow Chemical Co
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Filing: 1966-02-18
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Granted: 1967-02-07
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Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 Reifschneider Walter
- 👤 Jacqueline S Kelyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:11
CPC Classifications
C; C07; C07C; C07C323/00; C07C323/50; C07C323/51; C07C323/60; C07C323/10; C07C323/18; C07C323/20; C07C323/21; C07C2601/00; C07C2601/02; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
METHOD OF PREPARING PHENOLIC THIOETHERS OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
9 words
METHOD OF PREPARING PHENOLIC THIOETHERS OF THE GENERAL 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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |