US3562859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum forming apparatus
Assignee: AUTO VAC CO Inc
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Filing: 1968-03-12
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Granted: 1971-02-16
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Expires: 1988-03-12
Abstract
Abstract IMPROVED APPARATUS WITH RAPID CYCLE TIMES IS PROVIDED FOR THE CONTINUOUS PRODUCTION OF ARTICLES BY THERMOFORMING TECHNIQUES. PROCESSES AND APPARATUS SAVINGS ARE ACHIEVED BY SECURING THE FORMING DIE TO A TABLE THAT IS MOUNTED FOR RECIPROCATING IN BOTH A VERTICAL AND HORIZONTAL PLANE SO THAT THE DIE AND THE FORMED ARTICLE MAY BE MOVED TOGETHER FROM THE HEATING TO THE COOLING STATION. THIS ENABLES FEED STOCK TO BE HEATED AT THE SAME TIME A FORMED ARTICLE IS BEING COOLED, AND CYCLE TIMES ARE GREATLY REDUCED.
Inventors
- 👤 Journal E Mcintyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:04
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/18; B29C51/20
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |