Patent US3340339A successfully refreshed from Google Patents.
US3340339A
Expired / Lapsed
US
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Method of incorporating a phosphinate and particulate material in a polyamide to make low friction filament
Assignee: EIDP Inc
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Filing: 1963-06-07
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Granted: 1967-09-05
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Expires: 1983-06-07
Abstract
No abstract record available.
Inventors
- 👤 Ullman John Gerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:46
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
IN THE PRODUCTION OF A LOW FRACTION YARN FROM A POLYAMIDE, THE STEPS OF: ADDING FROM 0.003-0.045% BY WEIGHT, BASED ON THE WEIGHT OF SAID POLYAMIDE, OF A PHOSPHINATE HAVING THE FORMULA
Claim 2
Dependent Claim
32 words
IN THE PRODUCTION OF A LOW FRACTION YARN FROM A POLYAMIDE, THE STEPS OF: ADDING FROM 0.003-0.045% BY WEIGHT, BASED ON THE WEIGHT OF SAID POLYAMIDE, OF A PHOSPHINATE HAVING THE FORMULA
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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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |