Patent US3605181A successfully refreshed from Google Patents.
US3605181A
Expired / Lapsed
US
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Split-face mold with plunger
Assignee: GREATIVE POLYMER PRODUCTS CORP
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Filing: 1970-03-12
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Granted: 1971-09-20
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Expires: 1990-03-12
Abstract
Abstract A SPLIT-FACE MOLD INCLUDES AT LEAST ONE SECTION OF ELASTOMERIC MATERIAL. WITHIN THIS SECTION IS AT LEAST A PORTION OF THE MOLD CAVITY. ALSO, WITHIN THIS SECTION IS A RIGID PLUNGER WITH A FACE PLATE OPPOSITE THE MOLD CAVITY AND A SHAFT THAT EXTENDS AWAY FROM THE MOLD CAVITY TO THE OUTSIDE OF THE MOLD SECTION. THE PLUNGER IS USED TO FORCE MOLDED ARTICLES OUT OF THE MOLD CAVITY.
Inventors
- 👤 Richard Posner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:24
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/44; B29C33/442
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |