US3323945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the continuous production of fiber-containing shaped articles of synthetic polyamide
Assignee: Bayer AG
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Filing: 1963-05-29
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Granted: 1967-06-06
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Expires: 1983-05-29
Abstract
No abstract record available.
Inventors
- 👤 Hechelhammer Wilhelm
- 👤 Schneider Kurt
- 👤 Popper Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:30
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/002; B29B7/007; C; C08; C08L; C08L77/00; B29B7/80; B29B7/88; B29B7/90; B29B9/00; B29B9/12; B29B9/14; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; B29C70/16; B29C70/28; B29C70/40; B29C70/50; B29C70/52; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; C08G69/18; C08J; C08J5/00; C08J5/04; C08J5/0405; C08J5/043; C08K; C08K5/00; C08K5/16; C08K5/17; C08L77/02; B29B9/02; B29B9/06; C08J2377/00; C08J2377/02; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
PROCESS FOR THE PRODUCTION OF FIBER-CONTAINING SYNTHETIC POLYAMIDE SHAPED ARTICLES WHICH COMPRISES CONTINUOUSLY IMPREGNATING A FIBER SKEIN WITH AN ANHYDROUS POLYMERIZABLE LACTAM MELT CONTAINING AN ALKALINE POLYMERIZATION CATALYST, HEATING THE RESULTANT LACTAM-CONTAINING FIBER SKEIN TO POLYMERIZATION TEMPERATURE AND DRAWING OFF THE POLYMERIZATE CONTINUOUSLY.
Claim 2
Dependent Claim
43 words
PROCESS FOR THE PRODUCTION OF FIBER-CONTAINING SYNTHETIC POLYAMIDE SHAPED ARTICLES WHICH COMPRISES CONTINUOUSLY IMPREGNATING A FIBER SKEIN WITH AN ANHYDROUS POLYMERIZABLE LACTAM MELT CONTAINING AN ALKALINE POLYMERIZATION CATALYST, HEATING THE RESULTANT LACTAM-CONTAINING FIBER SKEIN TO POLYMERIZATION TEMPERATURE AND DRAWING OFF THE POLYMERIZATE CONTINUOUSLY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |