Patent US3305618A successfully refreshed from Google Patents.
US3305618A
Expired / Lapsed
US
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Molding process
Assignee: Emsu Co
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Filing: 1963-05-20
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Granted: 1967-02-21
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Sucher
- 👤 Daniel A Fischler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:04
CPC Classifications
B; B29; B29D; B29D19/00; B29C; B29C43/00; Y; Y10; Y10S; Y10S264/00; Y10S264/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
THE PROCESS OF COMPRESSION MOLDING ARTICLES FROM A LIQUID THERMOSETTING RESIN COMPOSITION IN A MOLD COMPRISING FIRST AND SECOND OPPOSED MOLD PARTS MOVABLE TOWARD EACH OTHER, SAID FIRST PART HAVING A PLURALITY OF MOLD CAVITIES, COMPRISING THE STEPS OF DISPOSING A POROUS SHEET BETWEEN SAID MOLD PARTS, DISPOSING A STRETCHABLE FILM BETWEEN SAID SHEET AND SAID SECOND MOLD PART, DISPOSING A QUANTITY OF LIQUID THERMOSETTING RESIN COMPOSITION BETWEEN SAID FILM AND SAID SECOND MOLD PART, MOVING SAID MOLD PARTS TOWARD EACH OTHER INTO CLOSED POSITION WHILE RESISTING MIGRATION OF THE RESIN FROM THE AREA BETWEEN SAID MOLD PARTS, AND HEATING THE RESIN IN THE CLOSED MOLD.
Claim 2
Dependent Claim
106 words
THE PROCESS OF COMPRESSION MOLDING ARTICLES FROM A LIQUID THERMOSETTING RESIN COMPOSITION IN A MOLD COMPRISING FIRST AND SECOND OPPOSED MOLD PARTS MOVABLE TOWARD EACH OTHER, SAID FIRST PART HAVING A PLURALITY OF MOLD CAVITIES, COMPRISING THE STEPS OF DISPOSING A POROUS SHEET BETWEEN SAID MOLD PARTS, DISPOSING A STRETCHABLE FILM BETWEEN SAID SHEET AND SAID SECOND MOLD PART, DISPOSING A QUANTITY OF LIQUID THERMOSETTING RESIN COMPOSITION BETWEEN SAID FILM AND SAID SECOND MOLD PART, MOVING SAID MOLD PARTS TOWARD EACH OTHER INTO CLOSED POSITION WHILE RESISTING MIGRATION OF THE RESIN FROM THE AREA BETWEEN SAID MOLD PARTS, AND HEATING THE RESIN IN THE CLOSED MOLD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |