Patent USRE27575E successfully refreshed from Google Patents.
US3587134A
Expired / Lapsed
US
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Mold-charging apparatus
Assignee: Koehring Co
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Filing: 1969-02-14
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Granted: 1971-06-28
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Expires: 1989-02-14
Abstract
Abstract AN APPARATUS FOR CHARGING EXPANDABLE THERMOPLASTIC BEADS TO A SINGLE OR MULTICAVITY MOLD WHEREIN A MOLD FACE IS PROVIDED WITH A FEEDER SLOT WHICH IS COMMON TO EACH CAVITY OF SAID MOLD FACE, AND WHEREIN EACH CAVITY COMMUNICATES WITH SAID COMMON FEEDER SLOT THROUGH AT LEAST ONE FILLING SLOT WHICH HAS GATING MEANS RECIPROCALLY DISPOSED THEREIN.
Inventors
- 👤 Charles N Premo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:49
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/44; B29C44/445; B29C44/3415; B29C44/3426; Y; Y10; Y10S; Y10S425/00; Y10S425/229
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |