US3157709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising a polyester and a monoester of a dihydroxy-substituted benzophenone
Assignee: Hooker Chemical Corp
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Filing: 1959-05-08
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Granted: 1964-11-17
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Expires: 1979-05-08
Abstract
No abstract record available.
Inventors
- 👤 Paul E Hoch
- 👤 Richard J Bellet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:40
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6828; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
29 words
A COMPOSITION OF MATTER COMPRISING (A) AN UNSATURATED POLYESTER RESIN HAVING ESTERIFIED THEREIN THE DIELS-ALDER REACTION PRODUCT OF HEXACLOROCYCLOPENTADIENE AND MALEIC ANHYDRIDE, AND (B) A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
29 words
A COMPOSITION OF MATTER COMPRISING (A) AN UNSATURATED POLYESTER RESIN HAVING ESTERIFIED THEREIN THE DIELS-ALDER REACTION PRODUCT OF HEXACLOROCYCLOPENTADIENE AND MALEIC ANHYDRIDE, AND (B) A COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
35 words
A COMPOSITION OF MATTER COMPRISING (A) AN UNSATURATED POLYESTER RESIN WHICH COMPRISES THE ESTERIFICATION PRODUCT OF ADIHYDRIC ALCOHOL AND THE DIELS-ALDER REACTION PRODUCT OF HEXACHLOROCYCLOPENTADIENE AND MALEIC ANHYDRIDE, AND (B) A COMPOUND HAVING THE FORMULA:
Claim 4
Dependent Claim
35 words
A COMPOSITION OF MATTER COMPRISING (A) AN UNSATURATED POLYESTER RESIN WHICH COMPRISES THE ESTERIFICATION PRODUCT OF ADIHYDRIC ALCOHOL AND THE DIELS-ALDER REACTION PRODUCT OF HEXACHLOROCYCLOPENTADIENE AND MALEIC ANHYDRIDE, AND (B) A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
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Cited
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US2890193A
Cited
US2853521A
Cited
US2938883A
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US2980647A
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US3080340A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |