Patent US2643983A successfully refreshed from Google Patents.
US2643983A
Expired / Lapsed
US
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Process for preparing cured shaped products
Assignee: EMSIG Manufacturing CO
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Filing: 1950-03-28
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Granted: 1953-06-30
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Expires: 1970-03-28
Abstract
No abstract record available.
Inventors
- 👤 Dangelmajer Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:53
CPC Classifications
B; B29; B29D; B29D19/00; C; C08; C08K; C08K7/00; B29C; B29C43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A RESINOUS COMPOSITION FOR THE PRODUCTION BY COMPRESSION MOLDING OF SHAPED AND CURED PRODUCTS HAVING INTEGRAL SHEEN, SAID COMPOSITION CONSISTING OF A LIQUID MIXTURE OF THERMOSETTING, UNSATURATED LIQUID POLYESTER RESIN WITH AN UNSATURATED LIQUID COMPOUND HAVING A CH2=C< LINKAGE AND BEING COMPATIBLE WITH SAID RESIN, A POLYMERIZATION CATALYST AND LIGHT-REFLECTING LAMELLAE, SAID MIXTURE BEING IN THE RANGE OF MAXIMUM VISCOSITY BEFORE GELATION, BUT STILL HOMOGENEOUSLY MISCIBLE WITH NON-POLYMERIZED STARTING MATERIAL.
Claim 2
Dependent Claim
70 words
A RESINOUS COMPOSITION FOR THE PRODUCTION BY COMPRESSION MOLDING OF SHAPED AND CURED PRODUCTS HAVING INTEGRAL SHEEN, SAID COMPOSITION CONSISTING OF A LIQUID MIXTURE OF THERMOSETTING, UNSATURATED LIQUID POLYESTER RESIN WITH AN UNSATURATED LIQUID COMPOUND HAVING A CH2=C< LINKAGE AND BEING COMPATIBLE WITH SAID RESIN, A POLYMERIZATION CATALYST AND LIGHT-REFLECTING LAMELLAE, SAID MIXTURE BEING IN THE RANGE OF MAXIMUM VISCOSITY BEFORE GELATION, BUT STILL HOMOGENEOUSLY MISCIBLE WITH NON-POLYMERIZED STARTING MATERIAL.
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) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |