Patent US2935739A successfully refreshed from Google Patents.
Patent US2740743A successfully refreshed from Google Patents.
US2740743A
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Method of making synthetic resin foam structures
Assignee: Goodyear Tire and Rubber Co
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Filing: 1952-12-31
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Granted: 1956-04-03
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Expires: 1972-12-31
Abstract
No abstract record available.
Inventors
- 👤 Henry A Pace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:52
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/68; C08G2110/00; C08G2110/0041; C08G2110/0058; C08G2110/0066; C08J2375/00; C08J2375/04; C08J2375/06; Y; Y10; Y10S; Y10S521/00; Y10S521/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE PROCESS OF PRODUCING A RESIN FOAM WHICH COMPRISES ADMIXING A FOAMABLE UNSATURATED ALKYD RESIN, STYRENE AND DINITROSOPENTAMETHYLENETETRAMINE AND AN ORGANIC PEROXIDE POYLMERIZATION CATALYST, AND THEN DISPERSING IN SAID MIXTURE AN ORGANIC DIISOCYANATE AND HEATING TO A TEMPERATURE OF AT LEAST 50* C. UNTIL FOAMING IS COMPLETED.
Claim 2
Dependent Claim
47 words
THE PROCESS OF PRODUCING A RESIN FOAM WHICH COMPRISES ADMIXING A FOAMABLE UNSATURATED ALKYD RESIN, STYRENE AND DINITROSOPENTAMETHYLENETETRAMINE AND AN ORGANIC PEROXIDE POYLMERIZATION CATALYST, AND THEN DISPERSING IN SAID MIXTURE AN ORGANIC DIISOCYANATE AND HEATING TO A TEMPERATURE OF AT LEAST 50* C. UNTIL FOAMING IS COMPLETED.
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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) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |