US2624714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizable polyester compositions
Assignee: Libbey Owens Ford Glass Co
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Filing: 1950-01-06
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Granted: 1953-01-06
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Expires: 1970-01-06
Abstract
No abstract record available.
Inventors
- 👤 Maurice H Bigelow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:14
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/06; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A MOLDING COMPOUND COMPRISING, AS A BINDER, A POLYMERIZABLE LINEAR UNSATURATED POLYCARBOXYLIC ACID-POLYHYDRIC ALCOHOL POLYESTER WHEREIN AT LEAST 95 PER CENT OF THE POLYHYDRIC ALCHOL RESIDUES ARE DERIVED FROM A DIHYDRIC ALCOHOL AND AT LEAST 95 PER CENT OF THE POLYCARBOXYLIC ACID RESIDUES ARE DERIVED FROM A DICARBOXYLIC ACID, AND A FILLER THAT COMPRISES MINERAL FIBERS, KAOLIN AND GRAPHITE IN AN AMOUNT THAT IS 0.1 TO 10 PER CENT OF THE WEIGHT OF THE MOLDING COMPOUND, FOR IMPROVING THE ABRASION RESISTANCE ATTAINABLE UPON POLYMERIZATION OF THE COMPOUND, THE WEIGHT RATIO OF (A) KAOLIN PLUS GRAPHITE TO (B) MINERAL FIBERS RANGING FROM 1:100 TO 6:1.
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) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |