Patent US3133941A successfully refreshed from Google Patents.
US3133941A
Expired / Lapsed
US
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Complex polyamide adducts
Assignee: Texaco Inc
•
Filing: 1959-02-26
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Granted: 1964-05-19
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Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 Gayle D Edwards
- 👤 Howard V Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:39
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/48; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A METHOD FOR PREPARING A POLYAMIDE ADDUCT WHICH COMPRISES REACTING AN AMINE RESIDUE WITH AN ORGANIC ACID REPRESENTED BY THE FORMULA:
Claim 2
Independent Claim
21 words
A METHOD FOR PREPARING A POLYAMIDE ADDUCT WHICH COMPRISES REACTING AN AMINE RESIDUE WITH AN ORGANIC ACID REPRESENTED BY THE FORMULA:
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US2883277A
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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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |