Patent US3557405A successfully refreshed from Google Patents.
US3557405A
Expired / Lapsed
US
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Automated multicavity isostatic press
Assignee: National Forge Co
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Filing: 1969-02-04
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Granted: 1971-01-26
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Expires: 1989-02-04
Abstract
Abstract A MULTICAVITY ISOSTATIC PRESS HAVING A PLURALITY OF PRESSURE VESSELS, EACH VESSEL HAVING A PRESSURE CHAMBER AND AN ELASTOMERIC CONTAINER IN THE PRESSURE CHAMBER, SAID ELASTOMERIC CONTAINER HAVING A CAVITY FOR RECEIVING POWER TO BE MOLDED, A MANDRREL HAVING AN EXTENSION FOR INSERTION INTO THE POWER CAVITY OF THE ELASTOMERIC CONTAINER, METERING MEANS FOR DELIVERING A METERED CHARGE OF POWER TO THE CONTAINER CAVITY, MEANS FOR INSERTING THE MANDREL AND FOR WITHDRAWING THE MANDREL AND MEANS FOR REMOVING ISOSTATIC MOLDED ARTICLES FROM THE MANDREL EXTENSION AND FOR TRANSFERRING THE MOLDED ARTICLE TO A CONVEYOR.
Inventors
- 👤 Arnold Gordon Bowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:24
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/30; B30B15/302; B30B11/00; B30B11/001
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |