Patent US2967843A successfully refreshed from Google Patents.
US2967843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin composition having high heat stability
Assignee: Furane Plastics Inc
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Filing: 1956-11-19
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Granted: 1961-01-10
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Expires: 1976-11-19
Abstract
No abstract record available.
Inventors
- 👤 Delmonte John
- 👤 Frank N Hirosawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:35
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4215; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31525; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3569; Y10T442/3585
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A GLASS CLOTH LAMINATE STRUCTURE COMPRISING SUPERIMPOSED LAYERS OF GLASS CLOTH IMPREGNATED AND BONDED TOGETHER BY A POLYGLYCIDAL ETHER OF 2,2 BIS (4-HYDROXY PHENYL) PROPANE RESIN-MALEIC ANHYDRIDE METHYL CYCLOPENTADIENE ADDUCT MIXTURE, THE PROPORTION BEING IN THE RANGE FROM 0.8 TO 3 MOLES OF RESIN FOR EACH MOLE OF THE ADDUCT, SAID GLAS CLOTH RESIN STRUCTURE HAVING BEEN CURED FOR AT LEAST 2 HOURS AT A TEMPERATURE OF NOT LESS THAN 500*F.
Claim 2
Dependent Claim
71 words
A GLASS CLOTH LAMINATE STRUCTURE COMPRISING SUPERIMPOSED LAYERS OF GLASS CLOTH IMPREGNATED AND BONDED TOGETHER BY A POLYGLYCIDAL ETHER OF 2,2 BIS (4-HYDROXY PHENYL) PROPANE RESIN-MALEIC ANHYDRIDE METHYL CYCLOPENTADIENE ADDUCT MIXTURE, THE PROPORTION BEING IN THE RANGE FROM 0.8 TO 3 MOLES OF RESIN FOR EACH MOLE OF THE ADDUCT, SAID GLAS CLOTH RESIN STRUCTURE HAVING BEEN CURED FOR AT LEAST 2 HOURS AT A TEMPERATURE OF NOT LESS THAN 500*F.
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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |