Patent US3269965A successfully refreshed from Google Patents.
US3269965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of epoxy fatty esters and/or fatty alcohols with c4-c6 lactams
Assignee: JBS USA LLC
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Filing: 1962-02-14
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Granted: 1966-08-30
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Expires: 1982-02-14
Abstract
No abstract record available.
Inventors
- 👤 Robert J Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:56
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/18; C08G59/20; C08G59/22; C08G59/28; C08G59/32; C08G59/40; C08G59/44; C08G69/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD FOR PREPARING A HARD RESINOUS COMPOSITION COMPRISING: FORMING A MIXTURE OF AN OXIRANE SUBSTITUTED HIGHER FATTY COMPOSITION SELECTED FROM THE GROUP CONSISTING OF ESTERS OF EPOXY FATTY ACIDS AND EPOXY FATTY ALCOHOLS MIXTURES THEREOF AND AN AMOUNT OF A LACTAM OF 4-6 CARBONS SUFFICIENT TO REACT WITH SOME, BUT NOT ALL OF THE EPOXIDE GROUPS OF SAID OXIRANE SUBSTITUTED FATTY COMPOSITIONS, AT A TEMPERATURE OF ABOUT 50-400*C. TO FORM A COPOLYMER AND FURTHER REACTING SAID COPOLYMER WITH AN EPOXY CURING AGENT.
Claim 2
Independent Claim
83 words
A METHOD FOR PREPARING A HARD RESINOUS COMPOSITION COMPRISING: FORMING A MIXTURE OF AN OXIRANE SUBSTITUTED HIGHER FATTY COMPOSITION SELECTED FROM THE GROUP CONSISTING OF ESTERS OF EPOXY FATTY ACIDS AND EPOXY FATTY ALCOHOLS MIXTURES THEREOF AND AN AMOUNT OF A LACTAM OF 4-6 CARBONS SUFFICIENT TO REACT WITH SOME, BUT NOT ALL OF THE EPOXIDE GROUPS OF SAID OXIRANE SUBSTITUTED FATTY COMPOSITIONS, AT A TEMPERATURE OF ABOUT 50-400*C. TO FORM A COPOLYMER AND FURTHER REACTING SAID COPOLYMER WITH AN EPOXY CURING AGENT.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |