US3824145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bonding a thermoplastic tubular part to the periphery of a thermoplastic tube head
Assignee: CONTINENTAL PLASTIC AG
•
Filing: 1972-10-25
•
Granted: 1974-07-16
•
Expires: 1992-10-25
Abstract
Abstract In a method of manufacturing a tube of thermoplastic material, a head and a tubular part of thermoplastic material are bonded together by friction welding, i.e. by a very rapid rotation of the head catched between a rotary tool and a cap.
Inventors
- 👤 V Flax
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:32
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/20; B29C; B29C65/00; B29C65/02; B29C65/06; B29C65/0672; B29C65/069; B29C65/78; B29C65/7841; B29C65/7844; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/122; B29C66/1224; B29C66/1226; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/61; B29C66/612; B29C66/63; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29L; B29L2023/00; B29L2023/20
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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |