US3580789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding gear for objects of thermoplastic material
Assignee: Hoechst AG
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Filing: 1968-07-09
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Granted: 1971-05-25
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Expires: 1988-07-09
Abstract
Abstract THE SPOUT OR SHOE OF A WELDING GEAR FOR OBJECTS OF THERMOPLASTIC MATERIALS, BY MEANS OF WHICH FULLY PLASTICIZED WELDING MATERIAL IS BROUGHT INTO A PREPARED WELDING GAP, COMPRISES, BETWEEN TWO LATERAL GUIDE SURFACES, A SMOOTHING FACE, A CONNECTION FOR THE SUPPLY OF THE WELDING MATERIAL AND AT ITS LEADING END A NOSE PROJECTING INTO THE WELDING GAP.
Inventors
- 👤 Gunter Wenzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:41
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/40; B29B; B29B13/00; B29B13/02; B29B13/022; B29C65/42; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C66/00; B29C66/01; B29C66/02; B29C66/024; B29C66/0242; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/114; B29C66/40; B29C66/41; B29C66/43; B29C66/434; B29C66/4344; B29C66/43441; B29C66/70; B29C66/71; B29C66/80; B29C66/83; B29C66/836; B29C66/84; B29C66/861; B29C66/1142; B29C66/81; B29C66/812; B29C66/8122; B29K; B29K2909/00; B29K2909/02
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |