Patent US3614836A successfully refreshed from Google Patents.
US3614836A
Expired / Lapsed
US
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Block copolymer foxing and soling composition
Assignee: Shell USA Inc
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Filing: 1968-07-08
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Granted: 1971-10-26
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Expires: 1988-07-08
Abstract
Abstract IMPROVED COMPOSITIONS ARE PROVIDED ESPECIALLY FOR USE AS INJECTION MOLDED TEXTILE SHOE FOXING AND SOLING COMPRISING BLOCK COPOLYMERS HAVING THE STRUCTURE POLYSTYRENEPOLYISOPRENE-POLYSTYRENE WITH NARROW MOLECULAR WEIGHT RANGE SPECIFICATIONS WHICH PROVIDE IMPROVED ADHESION OF THE FOXING TO CANVAS, INJECTION MOLDABILITY AND OZONE RESISTANCE. COMPOSITIONS ARE ALSO PROVIDED COMPRISING COMBINATIONS OF THE ABOVE-DESCRIBED BLOXK COPOLYMERS WITH BLOCK COPOLYMERS OF THE STRUCTURE POLYSTYRENE-POLYBUTADIENE-POLYSTYRENE.
Inventors
- 👤 John L Snyder
- 👤 Geoffrey Holden
- 👤 Thomas L Keelen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:09
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |