US3257475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally catalyzed heat-hardening alkylolated amide interpolymer containing unsaturated polyester comprising saturated polycarboxylic acid
Assignee: De Soto Chemical Coatings Inc
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Filing: 1962-09-24
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Granted: 1966-06-21
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Expires: 1982-09-24
Abstract
No abstract record available.
Inventors
- 👤 Sekmakas Kazys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:14
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F8/00; C09; C09D; C09D133/00; C09D133/24; C09D133/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A STORAGE STABLE AND INTERNALLY CATALYZED HEAT-HARDENING SOLVENT-SOLUBLE NON-GELLED PRODUCT PRODUCED BY THE ADDITION INTERPOLYMERIZATION OF (A) A MONOAMIDE OF AN ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID, AND (B) POLYMERIZABLE UNSATURATED MATERIAL COMPRISING UNSATURATED CARBOXYL-TERMINATED POLYESTER RESIN, SAID POLESTER RESIN BEING FORMED BY THE POLYESTERIFICATION OF COMPONENTS COMPRISING SATURATED POLYCARBOXYLIC ACID AND SAID CARBOXYL TERMINATION CONSISTING ESSENTIALLY OF SAID SATURATED POLYCARBOXYLIC ACID INCORPORATED IN SAID POLYESTER RESIN, AMIDO HYDROGEN ATOMS OF SAID INTERPOLYMER BEING REPLACED BY THE STRUCTURE
Claim 2
Dependent Claim
76 words
A STORAGE STABLE AND INTERNALLY CATALYZED HEAT-HARDENING SOLVENT-SOLUBLE NON-GELLED PRODUCT PRODUCED BY THE ADDITION INTERPOLYMERIZATION OF (A) A MONOAMIDE OF AN ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID, AND (B) POLYMERIZABLE UNSATURATED MATERIAL COMPRISING UNSATURATED CARBOXYL-TERMINATED POLYESTER RESIN, SAID POLESTER RESIN BEING FORMED BY THE POLYESTERIFICATION OF COMPONENTS COMPRISING SATURATED POLYCARBOXYLIC ACID AND SAID CARBOXYL TERMINATION CONSISTING ESSENTIALLY OF SAID SATURATED POLYCARBOXYLIC ACID INCORPORATED IN SAID POLYESTER RESIN, AMIDO HYDROGEN ATOMS OF SAID INTERPOLYMER BEING REPLACED BY THE STRUCTURE
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |