Patent US4907800A successfully refreshed from Google Patents.
Patent US3343980A successfully refreshed from Google Patents.
US3343980A
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Polyamide fibers treated with an amphoteric activator
Assignee: Monsanto Co
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Filing: 1966-04-18
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Granted: 1967-09-26
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Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 Julian J Hirshfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:13
CPC Classifications
D; D04; D04H; D04H11/00; D01; D01F; D01F6/00; D01F6/58; D01F6/60; D06; D06M; D06M13/00; D06M13/244; D06M13/248; D06M13/256; D06M13/322; D06M13/325; D06M13/342; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2971; Y10T428/2973; Y10T428/2978; Y10T428/298
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A COMPOSITION OF MATTER COMPOSED OF SYNTHETIC LINEAR POLYHEXAMETHYLENE ADIPAMIDE FIBERS AND AN ACTIVATOR CONSISTING OF A SODIUM SALT OF N,N-DIETHOXYLAMINO-1-OCADECANE-3-SULFONIC ACID, THE AMOUNT OF SAID SODIUM SALT BEING UP TO 2 PERCENT BY WEIGHT OF THE FIBER.
Claim 2
Dependent Claim
38 words
A COMPOSITION OF MATTER COMPOSED OF SYNTHETIC LINEAR POLYHEXAMETHYLENE ADIPAMIDE FIBERS AND AN ACTIVATOR CONSISTING OF A SODIUM SALT OF N,N-DIETHOXYLAMINO-1-OCADECANE-3-SULFONIC ACID, THE AMOUNT OF SAID SODIUM SALT BEING UP TO 2 PERCENT BY WEIGHT OF THE FIBER.
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |