US3329633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide and fibers derived therefrom
Assignee: Monsanto Co
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Filing: 1964-10-15
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Granted: 1967-07-04
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Expires: 1984-10-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Lawrence W Crovatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:43
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
A FIBER-FORMING SYNTHETIC LINEAR POLYAMIDE HAVING IMPROVED LUBRICITY WHEN IN FIBER FORM WHICH COMPRISES THE PRODUCT OBTAINED BY THE PROCESS COMPRISING POLYMERIZING A POLYAMIDE-FORMING MONOMER CONSISTING OF THE SALT FORMED BY SUBSTANTIALLY EQUIMOLECULAR PROPORTIONS OF ADIPIC ACID AND HEXAMETHYLENE DIAMINE AND ADDING TO THE POLYMER DURING THE FINAL POLYMERIZATION STAGE THEREOF, FROM 0.1 TO ABOUT 5.0 WEIGHT PERCENT OF OLEIC ACID DIMER.
References Cited (Backward Citations)
US3240732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |