Patent US3350423A successfully refreshed from Google Patents.
US3350423A
Expired / Lapsed
US
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Method of preparing ethers of thiobisphenol compounds
Assignee: Dow Chemical Co
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Filing: 1966-06-29
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Granted: 1967-10-31
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Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 Robert L Carlyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:22
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/063; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08G59/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
THE METHOD OF PREPARING DIGLYCIDYL ETHERS OF THIOBISPHENOL WHICH ARE REPRESENTED BY THE FORMULA:
Claim 2
Independent Claim
14 words
THE METHOD OF PREPARING DIGLYCIDYL ETHERS OF THIOBISPHENOL WHICH ARE REPRESENTED BY THE 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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |