Patent US2638457A successfully refreshed from Google Patents.
US2638457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe sole composition
Assignee: Wingfoot Corp
•
Filing: 1945-10-02
•
Granted: 1953-05-12
•
Expires: 1965-10-02
Abstract
No abstract record available.
Inventors
- 👤 George H Gates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:54
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/06; C08K; C08K3/00; C08K3/01; C08K3/013; C08K3/34; C08K3/346; C08L1/00; C08L1/08; C08L1/22; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A COMPOSITION IN SHEET FORM COMPRISING A FILLER INCLUDING ABOUT 10 TO ABOUT 25 PARTS OF A CELLULOSIC FLOCK MATERIAL TOGETHER WITH A SUBSTANTIAL AND EFFECTIVE AMOUNT OF MINERAL FILLER, AND AS A BINDER THEREFOR THE VULCANIZATE RESULTING FROM THE VULCANIZATION OF (1) A RUBBERY COPOLYMER OF A MAJOR PROPORTION OF BUTADIENE AND A MINOR PROPORTION OF STYRENE, (2) 25 TO 100 PARTS OF A HARD, THERMOPLASTIC RESIN OBTAINED BY COPOLYMERIZING A MIXTURE OF 70-95 WEIGHT PERCENT OF STYRENE AND 30-5 WEIGHT PERCENT OF BUTADIENE IN AQUEOUS EMULSION IN THE PRESENCE OF A SUBSTANCE WHICH PROMOTES THE SOLUBILITY OF THE RESULTING RESIN IN BENZENE AND SELECTED FROM THE GROUP CONSISTING OF MERCAPTANS CONTAINING AT LEAST SIX
Claim 2
Dependent Claim
116 words
A COMPOSITION IN SHEET FORM COMPRISING A FILLER INCLUDING ABOUT 10 TO ABOUT 25 PARTS OF A CELLULOSIC FLOCK MATERIAL TOGETHER WITH A SUBSTANTIAL AND EFFECTIVE AMOUNT OF MINERAL FILLER, AND AS A BINDER THEREFOR THE VULCANIZATE RESULTING FROM THE VULCANIZATION OF (1) A RUBBERY COPOLYMER OF A MAJOR PROPORTION OF BUTADIENE AND A MINOR PROPORTION OF STYRENE, (2) 25 TO 100 PARTS OF A HARD, THERMOPLASTIC RESIN OBTAINED BY COPOLYMERIZING A MIXTURE OF 70-95 WEIGHT PERCENT OF STYRENE AND 30-5 WEIGHT PERCENT OF BUTADIENE IN AQUEOUS EMULSION IN THE PRESENCE OF A SUBSTANCE WHICH PROMOTES THE SOLUBILITY OF THE RESULTING RESIN IN BENZENE AND SELECTED FROM THE GROUP CONSISTING OF MERCAPTANS CONTAINING AT LEAST SIX
References Cited (Backward Citations)
GB345939A
Cited
US2039529A
Cited
US2029371A
Cited
US2393208A
Cited
US2414803A
Cited
US2419202A
Cited
US2541748A
Cited
US2452999A
Cited
US2477316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |