US2623029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of stable thermosetting compositions
Assignee: Libbey Owens Ford Glass Co
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Filing: 1951-03-23
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Granted: 1952-12-23
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Expires: 1971-03-23
Abstract
No abstract record available.
Inventors
- 👤 William C Dearing
- 👤 Arthur M Howald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:52
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08L; C08L67/00; C08L67/06; C08J2367/00; C08J2367/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
A THERMOSETTING COMPOSITION IN STABLE FORM COMPRISING A FIBROUS FILLER IMPREGNATED WITH A CRYSTALLINE POLYMERIZABLE UNSATURATED POLYHYDRIC ALCOHOL-POLYCARBOXYLIC ACID POLYESTER, AND A CATALYST OF THE CLASS CONSISTING OF ORGANIC PEROXIDES AND ORGANIC OZONIDES, IN THE FORM OF A FINELY DIVIDED DRY POWDER WITH AIR DIFFUSED THROUGHOUT THE MASS.
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) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |