Patent US3387314A successfully refreshed from Google Patents.
Patent US3664784A successfully refreshed from Google Patents.
US3664784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compacting press
Assignee: Pennwalt Corp
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Filing: 1970-01-19
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Granted: 1972-05-23
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Expires: 1990-01-19
Abstract
Abstract A COMPACTING PRESS OF THE DOWNACTING TYPE WITH A BREECH LOCK TYPE OF COMPRESSION STOP IN THE CORE ROD, AND WHEREIN A TOGGLE IS EMPLOYED TO RELEASE DIE PLATENS FOR DOWNWARD MOTION AFTER COMPRESSION OF THE FORMED PART. PROVISION IS MADE TO STRIP THE DIES FROM THE FORMED PART DURING EJECTION BY APPLYING A POSITIVE, DOWNWARDLY ACTING FORCE AGAINST THE DIE TABLE AND ALSO TO PREVENT RESTRIKING OF THE FORMED PART.
Inventors
- 👤 Joseph F Sibley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:07
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/007; B28; B28B; B28B3/00; B28B3/02; B28B3/08; B28B3/083; B30B1/00; B30B1/10; B30B1/16; B30B1/26; B30B11/02
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |