Patent US3044983A successfully refreshed from Google Patents.
US3044983A
Expired / Lapsed
US
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Cured resins from glycidyl ether of dihydroxydiphenylsulfones
Assignee: Tennessee Corp
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Filing: 1958-07-22
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Granted: 1962-07-17
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Expires: 1978-07-22
Abstract
No abstract record available.
Inventors
- 👤 John E Singley
- 👤 Christiansen Arvid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:16
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4223; C08G59/20; C08G59/22; C08G59/30; C08G59/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A RESIN COMPOSITION OBTAINED BY MIXING TOGETHER (A) A MOLTEN MIXTURE OF THE REACTION PRODUCT OF EPICHLOROHYDRIN WITH A DIHYDROXY-DIARYL SULFONE HAVING APPROXIMATELY 80% OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
28 words
A RESIN COMPOSITION OBTAINED BY MIXING TOGETHER (A) A MOLTEN MIXTURE OF THE REACTION PRODUCT OF EPICHLOROHYDRIN WITH A DIHYDROXY-DIARYL SULFONE HAVING APPROXIMATELY 80% OF THE STRUCTURAL FORMULA
References Cited (Backward Citations)
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US2765322A
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US2767157A
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US2890189A
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US2809184A
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US2839495A
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US2853468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |