Patent US5735871A successfully refreshed from Google Patents.
Patent US2822345A successfully refreshed from Google Patents.
US2822345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester-vinyl monomer compositions containing amidino compound and a sulfhydryl compound and process for copolymerizing same
Assignee: Wyeth Holdings LLC
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Filing: 1957-01-23
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Granted: 1958-02-04
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Expires: 1977-01-23
Abstract
No abstract record available.
Inventors
- 👤 Duhnkrack George Bliss
- 👤 Mills Charles Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:49
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A COMPOSITION OF MATTER COMPRISING (1) AN UNSATURATED POLYESTER RESIN PREPARED BY REACTING A POLYHYDRIC ALCOHOL WITH AN A, B, ETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID, (2) A MONOMER COPOLYMERIZABLE WITH SAID (1) AND CONTAINING A CH2=C< GROUP AND HAVING A BOILING POINT OF AT LEAST 60*C., (3) FROM ABOUT 0.001 TO 1.0% BASED ON THE COMBINED WEIGHT OF SAID (1) AND (2), OF A SULFHYDRYL COMPOUND AND (4) FROM ABOUT 0.0003 TO 0.5%, BASED ON THE COMBINED WEIGHT OF SAID (1) AND (2), OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THE GUANIDINES, ISOMELAMINES, AMIDINES, BIGUANIDES, GUANYLUREAS, PSEUDOUREAS, PSEUDOTHIOUREAS AND THE SALTS THEREOF.
Claim 2
Dependent Claim
103 words
A COMPOSITION OF MATTER COMPRISING (1) AN UNSATURATED POLYESTER RESIN PREPARED BY REACTING A POLYHYDRIC ALCOHOL WITH AN A, B, ETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID, (2) A MONOMER COPOLYMERIZABLE WITH SAID (1) AND CONTAINING A CH2=C< GROUP AND HAVING A BOILING POINT OF AT LEAST 60*C., (3) FROM ABOUT 0.001 TO 1.0% BASED ON THE COMBINED WEIGHT OF SAID (1) AND (2), OF A SULFHYDRYL COMPOUND AND (4) FROM ABOUT 0.0003 TO 0.5%, BASED ON THE COMBINED WEIGHT OF SAID (1) AND (2), OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THE GUANIDINES, ISOMELAMINES, AMIDINES, BIGUANIDES, GUANYLUREAS, PSEUDOUREAS, PSEUDOTHIOUREAS AND THE SALTS THEREOF.
References Cited (Backward Citations)
US2466800A
Cited
US2452669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |