US3287441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt-spinnable composition of a poly (nu-vinyl amide) and a polymer from the class consisting of polyamides, polyureas, and polyurethanes
Assignee: EIDP Inc
•
Filing: 1965-06-08
•
Granted: 1966-11-22
•
Expires: 1985-06-08
Abstract
No abstract record available.
Inventors
- 👤 Magat Eugene Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:54
CPC Classifications
C; C08; C08L; C08L77/00; C08L39/00; C08L39/04; C08L39/06; C08L75/00; C08L75/04; D; D01; D01F; D01F6/00; D01F6/88; D01F6/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A SINGLE PHASE MELT-SPINNABLE COMPOSITION CONSISTING ESSENTIALLY OF (1) A SYNTHETIC LINEAR FIBER-FORMING CONDENSATION POLYMER FROM THE CLASS CONSISTING OF A POLYAMIDE, A POLYURETHANE AND A POLYUREA, THE SAID POLYMER BEING CHARACTERIZED BY RECURRING AMIDE NITROGEN INTERUNIT LINKAGES AS AN INTEGRAL PART OF THE POLYMER CHAIN, THE SAID AMIDE NITROGEN INTERUNIT LINKAGES HAVING THE FORMULA FROM THE CLASS CONSISTING OF
Claim 2
Dependent Claim
61 words
IN A SINGLE PHASE MELT-SPINNABLE COMPOSITION CONSISTING ESSENTIALLY OF (1) A SYNTHETIC LINEAR FIBER-FORMING CONDENSATION POLYMER FROM THE CLASS CONSISTING OF A POLYAMIDE, A POLYURETHANE AND A POLYUREA, THE SAID POLYMER BEING CHARACTERIZED BY RECURRING AMIDE NITROGEN INTERUNIT LINKAGES AS AN INTEGRAL PART OF THE POLYMER CHAIN, THE SAID AMIDE NITROGEN INTERUNIT LINKAGES HAVING THE FORMULA FROM THE CLASS CONSISTING OF
References Cited (Backward Citations)
US2958677A
Cited
US3036988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |