Patent US3793424A successfully refreshed from Google Patents.
US3793424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt-captivating apparatus and method
Assignee: Individual
•
Filing: 1972-03-08
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Granted: 1974-02-19
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Expires: 1992-03-08
Abstract
Abstract A method and apparatus for removing thermoplastic articles from solid waste. The apparatus has a high heat conductive core element surrounded by a ceramic member having a captivation chamber on its working end. The thermoplastic material is contacted and the heat from the core element causes it to flow and, as it flows, it forms a mechanical bond with the captivation chamber.
Inventors
- 👤 C Haga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:40
CPC Classifications
B; B07; B07B; B07B13/00; B07B13/003; B29; B29B; B29B17/00; B29B17/02; B29B2017/0213; B29B2017/0255; B29B2017/0258; B29K; B29K2105/00; B29K2105/06; B29K2105/065; B29K2711/00; B29K2711/12; B29L; B29L2007/00; B29L2007/008; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |