US3749635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cutting out and welding a continuously moving sheath made of thermoplastic material
Assignee: SOFAMECA Sarl
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Filing: 1970-09-29
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Granted: 1973-07-31
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Expires: 1990-09-29
Abstract
Abstract The apparatus comprises cutters whose section has a width which varies as a function of their height and which have at least one sharp cutting portion, and which are connected to a heating means, said cutters are mounted on the frame of the machine by means permitting a displacement of the cutters along a plane perpendicular to the surface of the sheath. The invention may be used in machines for making plastic bags from sheaths.
Inventors
- 👤 G Lagain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:54
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/83; B29C66/836; B26; B26D; B26D1/00; B26D1/01; B26D1/02; B26D1/03; B26D1/035; B29C65/00; B29C65/02; B29C65/18; B29C65/74; B29C65/743; B29C65/7439; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/137; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/82; B29C66/822; B29C66/8221; B29C66/8223; B29C66/832; B29C66/8324; B29C66/84; B29C66/843; B29C66/8432; B29C66/90; B29C66/94; B29C66/944; B29C65/24; B29C65/30; B29C65/305; B29C66/841; B29C66/8412; B29C66/84121; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 0
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |