US3308091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized polyamides containing cupric acetate, cupric chloride and 2-mercaptobenzothiazole
Assignee: EIDP Inc
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Filing: 1963-06-24
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Granted: 1967-03-07
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Expires: 1983-06-24
Abstract
No abstract record available.
Inventors
- 👤 Jr John Adam Zapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K3/00; C08K3/16; C08K5/36; C08K5/45; C08K5/46; C08K5/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A HYDROLYSIS AND OXIDATION RESISTANT LONG CHAIN FIBER FORMING POLYMERIC AMIDE HAVING RECURRING AMIDE GROUPS AS AN INTEGRAL PART OF THE POLYMER CHAIN HAVING 20 TO 140 GRAM EQUIVALENTS OF AMINE GROUPS IN EXCESS OF THE NUMBER OF CARBOXYL GROUPS PER 10**6 GRAMS OF POLYMER CONTAINING BETWEEN ABOUT 0.02 AND ABOUT 0.08 PERCENT BY WEIGHT OF THE COMPOSITION CUPRIC CHLORIDE, BETWEEN ABOUT 0.02 AND ABOUT 0.08 PERCENT BY WEIGHT OF THE COMPOSITION CUPRIC ACETATE, AND BETWEEN ABOUT 0.05 AND ABOUT 0.5 PERCENT BY WEIGHT OF THE COMPOSITION OF 2-MERCAPTOBENZOTHIAZOLE.
Claim 2
Dependent Claim
89 words
A HYDROLYSIS AND OXIDATION RESISTANT LONG CHAIN FIBER FORMING POLYMERIC AMIDE HAVING RECURRING AMIDE GROUPS AS AN INTEGRAL PART OF THE POLYMER CHAIN HAVING 20 TO 140 GRAM EQUIVALENTS OF AMINE GROUPS IN EXCESS OF THE NUMBER OF CARBOXYL GROUPS PER 10**6 GRAMS OF POLYMER CONTAINING BETWEEN ABOUT 0.02 AND ABOUT 0.08 PERCENT BY WEIGHT OF THE COMPOSITION CUPRIC CHLORIDE, BETWEEN ABOUT 0.02 AND ABOUT 0.08 PERCENT BY WEIGHT OF THE COMPOSITION CUPRIC ACETATE, AND BETWEEN ABOUT 0.05 AND ABOUT 0.5 PERCENT BY WEIGHT OF THE COMPOSITION OF 2-MERCAPTOBENZOTHIAZOLE.
References Cited (Backward Citations)
GB890437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |