US3208894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making impregnated base materials, employing unsaturated polyester resin
Assignee: Individual
•
Filing: 1960-11-21
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Granted: 1965-09-28
•
Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Yanagihara Kotaro
- 👤 Suzuki Takenori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:17
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; B; B32; B32B; B32B27/00; C; C09; C09D; C09D167/00; C09D167/06; H01; H01B; H01B3/00; H01B3/18; H01B3/30; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522; Y10T428/31678; Y10T428/31681; Y10T428/31786; Y10T428/31794
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE PROCESS OF MAKING A LAMINATE, COMPRISING IMPREGNATING AND COATING A BASE MATERIAL WITH (A) A PEROXIDE CATALYST SUITABLE FOR HEAT SETTING, (B) A LIQUID COMPOSITION OF A CROSS-LINKED UNSATURATED POLYESTER RESIN HAVING REACTIVE -OH AND -COOH GROUPS AND (C) A LIQUID COMPOSITION OF AN EPOXY HAVING AT LEAST TWO FUNCTIONAL GROUPS PER MOLECULE; SAID COMPOSITIONS BEING APPLIED TO SAID BASE MATERIAL BEFORE THEY ARE REACTED WITH EACH OTHER; THEN HEATING SAID BASE TO EFFECT THE CATALYST-PROMOTED REACTION OF B WITH C TO THE "B STATE"; STACKING A PLURALITY OF LAYERS OF SAID IMPREGNATED BASE UPON ONE ANOTHER AND SUBJECTING THE STACK TO HEAT AND PRESSURE TO FORM A LAMINATE.
Claim 2
Dependent Claim
110 words
THE PROCESS OF MAKING A LAMINATE, COMPRISING IMPREGNATING AND COATING A BASE MATERIAL WITH (A) A PEROXIDE CATALYST SUITABLE FOR HEAT SETTING, (B) A LIQUID COMPOSITION OF A CROSS-LINKED UNSATURATED POLYESTER RESIN HAVING REACTIVE -OH AND -COOH GROUPS AND (C) A LIQUID COMPOSITION OF AN EPOXY HAVING AT LEAST TWO FUNCTIONAL GROUPS PER MOLECULE; SAID COMPOSITIONS BEING APPLIED TO SAID BASE MATERIAL BEFORE THEY ARE REACTED WITH EACH OTHER; THEN HEATING SAID BASE TO EFFECT THE CATALYST-PROMOTED REACTION OF B WITH C TO THE "B STATE"; STACKING A PLURALITY OF LAYERS OF SAID IMPREGNATED BASE UPON ONE ANOTHER AND SUBJECTING THE STACK TO HEAT AND PRESSURE TO FORM A LAMINATE.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |