US2605247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial leather product from a butadiene-acrylonitrile copolymer, calcined clay, and polyvinyl chloride resins, and process of producing same
Assignee: Bridgestone Firestone Inc
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Filing: 1950-06-17
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Granted: 1952-07-29
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Expires: 1970-06-17
Abstract
No abstract record available.
Inventors
- 👤 Elmer C Schule
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:16
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/02; C08K; C08K3/00; C08K3/34; C08K3/346; C08L27/00; C08L27/02; C08L27/04; C08L27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
PROCESS WHICH COMPRISES (A) MILLING, AT A TEMPERATURE BELOW 130* F., A PRELIMINARY MIX COMPRISING (1) A BUTADIENE-ACRYLONITRILE COPOLYMER CONTAINING FROM 30 TO 45% OF ACRYLONITRILE AND (2) A CALCINED CLAY, (B) THEREAFTER MILLING AT FROM 290 TO 340* F. THE RESULTANT PRELIMINARY MIX WITH (3) A VINYL CHLORIDE RESIN SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND COPOLYMERS THEREOF WITH OTHER UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH CONTAINING AT LEAST 80% OF VINYL CHLORIDE COPOLYMERIZED THEREIN, THE SAID INGREDIENTS BEING EMPLOYED IN THE FOLLOWING PROPORTIONS:
Claim 2
Dependent Claim
87 words
PROCESS WHICH COMPRISES (A) MILLING, AT A TEMPERATURE BELOW 130* F., A PRELIMINARY MIX COMPRISING (1) A BUTADIENE-ACRYLONITRILE COPOLYMER CONTAINING FROM 30 TO 45% OF ACRYLONITRILE AND (2) A CALCINED CLAY, (B) THEREAFTER MILLING AT FROM 290 TO 340* F. THE RESULTANT PRELIMINARY MIX WITH (3) A VINYL CHLORIDE RESIN SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND COPOLYMERS THEREOF WITH OTHER UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH CONTAINING AT LEAST 80% OF VINYL CHLORIDE COPOLYMERIZED THEREIN, THE SAID INGREDIENTS BEING EMPLOYED IN THE FOLLOWING PROPORTIONS:
References Cited (Backward Citations)
US2330353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |