US3682748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat press machine and method
Assignee: Borg Warner Corp
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Filing: 1970-06-19
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Granted: 1972-08-08
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Expires: 1990-06-19
Abstract
Abstract A machine for heat sealing plastic parts has work supports movable toward each other, first to a hating position where the parts contact heating means, toward each other where the heated parts contact one another at which time pressure is applied to join the contacting parts. The work supports are air platens which yield under the sealing pressure. The work is held on vacuum chucks for heating and sealing.
Inventors
- 👤 Jack E Kimball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:49
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C65/2053; B29C65/2061; B29C65/2069; B29C65/2076; B29B; B29B13/00; B29B13/02; B29B13/023; B29B13/024; B29B13/025; B29C65/78; B29C65/7841; B29C65/7847; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C66/542; B29C66/80; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C66/83221; B29C66/90; B29C66/92; B29C66/924; B29C66/9241; B29C66/9261; B29C66/92651; B29C66/92653; B29C66/92655; B29C66/91; B29C66/94; B29L; B29L2023/00; B29L2023/22; B29L2031/00; B29L2031/712; B29L2031/7146
Claims Analysis
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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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |