US3229347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for roughening the outer surfaces of filaments made of high molecular plastic material
Assignee: Individual
•
Filing: 1963-09-23
•
Granted: 1966-01-18
•
Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Libuse A Tlamicha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:47
CPC Classifications
D; D02; D02J; D02J3/00; D02J3/02; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D11/00; D01D11/04; D02G; D02G1/00; D02G1/02; D02G1/04; D02G1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AN APPARATUS FOR ROUGHENING THE SURFACES OF A FILAMENT OF HIGHLY MOLECULAR PLASTIC MATERIAL, COMPRISING A ROTARY ROUGHENING ELEMENT HAVING AN AXIS OF ROTATION, SAID ELEMENT BEING PROVIDED WITH ROUGHENING SURFACES ON MUTUALLY OPPOSITE SIDES, AND MEANS FOR FEEDING THE FILAMENT AT LEAST ONCE OVER EACH OF SAID SURFACES IN SUCH A MANNER AS TO ROUGHEN THE SURFACES OF THE FILAMENT BY ENGAGEMENT WITH SAID ROUGHENING SURFACES IN MUTUALLY CROSSING DIRECTIONS.
Claim 2
Independent Claim
71 words
AN APPARATUS FOR ROUGHENING THE SURFACES OF A FILAMENT OF HIGHLY MOLECULAR PLASTIC MATERIAL, COMPRISING A ROTARY ROUGHENING ELEMENT HAVING AN AXIS OF ROTATION, SAID ELEMENT BEING PROVIDED WITH ROUGHENING SURFACES ON MUTUALLY OPPOSITE SIDES, AND MEANS FOR FEEDING THE FILAMENT AT LEAST ONCE OVER EACH OF SAID SURFACES IN SUCH A MANNER AS TO ROUGHEN THE SURFACES OF THE FILAMENT BY ENGAGEMENT WITH SAID ROUGHENING SURFACES IN MUTUALLY CROSSING DIRECTIONS.
References Cited (Backward Citations)
US2234947A
Cited
US2241206A
Cited
US2244333A
Cited
US3123952A
Cited
US3125838A
Cited
US2536312A
Cited
US2736946A
Cited
US2781555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |