US2658053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixture of polychloroprene, vinyl chloride-vinylidene chloride copolymer, and butadiene-acrylonitrile copolymer
Assignee: Visking Corp
•
Filing: 1950-06-08
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Granted: 1953-11-03
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Expires: 1970-06-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph J Signer
- 👤 Keith F Beal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:52
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/08; C08L15/00; C08L15/02; C08L9/00; C08L9/02; Y; Y10; Y10S; Y10S525/00; Y10S525/931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
FORMED STRUCTURES CONSISTING ESSENTIALLY OF 25% OF A SYNTHETIC RESIN FORMED OF A RUBBERY COPOLYMER OF 75%-55% BUTADIENE AND 25%-45% ACRYLONITRILE, 50% OF A COPOLYMER OF 18%-15% VINYL CHLORIDE AND 82% VINYLIDENE CHLORIDE, AND 25% OF A BLENDING AGENT CONSISTING OF POLYCHLOROPRENE WHEREBY SAID COPOLYMERS BEING NORMALLY INCOMPATIBLE ARE MADE COMPATIBLE.
Claim 2
Dependent Claim
51 words
FORMED STRUCTURES CONSISTING ESSENTIALLY OF 25% OF A SYNTHETIC RESIN FORMED OF A RUBBERY COPOLYMER OF 75%-55% BUTADIENE AND 25%-45% ACRYLONITRILE, 50% OF A COPOLYMER OF 18%-15% VINYL CHLORIDE AND 82% VINYLIDENE CHLORIDE, AND 25% OF A BLENDING AGENT CONSISTING OF POLYCHLOROPRENE WHEREBY SAID COPOLYMERS BEING NORMALLY INCOMPATIBLE ARE MADE COMPATIBLE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |