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US3071559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat curable epoxy ether resin employing meta-chlor-aniline-formaldehyde hardener and process of curing the same
Assignee: GAF Chemicals Corp
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Filing: 1958-07-07
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Granted: 1963-01-01
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Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 Smith Carl Mayn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:30
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A HEAT CURING COMPOSITION COMPRISING A HEAT CURABLE EPOXY ETHER RESIN CONSISTING OF A DIGLYCIDLY ETHER OF PARA, PARA'' ISOPROPYLIDENEDIPHENOL AND HAVING AN EPOXIDE EQUIVALENT WITHIN THE RANGE OF 140 TO 290 IN ADMIXTURE WITH A CURING AMOUNT OF A HARDENER COMPOSITION CONSISTING ESSENTIALLY OF SOLID RESINOUS PRODUCTS OF THE FORMULA
Claim 2
Dependent Claim
51 words
A HEAT CURING COMPOSITION COMPRISING A HEAT CURABLE EPOXY ETHER RESIN CONSISTING OF A DIGLYCIDLY ETHER OF PARA, PARA'' ISOPROPYLIDENEDIPHENOL AND HAVING AN EPOXIDE EQUIVALENT WITHIN THE RANGE OF 140 TO 290 IN ADMIXTURE WITH A CURING AMOUNT OF A HARDENER COMPOSITION CONSISTING ESSENTIALLY OF SOLID RESINOUS PRODUCTS OF THE FORMULA
References Cited (Backward Citations)
US2511913A
Cited
US2881149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |