Patent US3790652A successfully refreshed from Google Patents.
US3790652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a thermoplastic net by slitting and shrinking operations
Assignee: Breveteam SA
•
Filing: 1971-06-08
•
Granted: 1974-02-05
•
Expires: 1991-06-08
Abstract
Abstract Thermoplastics film is extruded by a practice forming a film that is highly shrinkable transversely relative to any longitudinal shrinkability. A suitable pattern of longitudinal slits is formed through this film and thereafter it is continuously passed through a zone which opens the slits by shrinking the film to form a net which is coiled.
Inventors
- 👤 J Colijn
- 👤 G Tesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:05
CPC Classifications
B; B29; B29D; B29D28/00; B26; B26F; B26F1/00; B26F1/18; B26F1/20; B29C; B29C61/00; B29C61/02; B29L; B29L2028/00; Y; Y10; Y10S; Y10S264/00; Y10S264/71; Y10S264/81; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1062; Y10T156/1084; Y10T156/1085; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24314
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |