US2498532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubberlike polymers plasticized with dibutyl dihydracrylate
Assignee: Wyeth Holdings LLC
•
Filing: 1945-07-17
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Granted: 1950-02-21
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Expires: 1965-07-17
Abstract
No abstract record available.
Inventors
- 👤 Russell T Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A PLASTICIZED ELASTICATED COMPOSITION OF MATTER OF LOW BRITTLE POINT COMPRISING A RUBBER-LIKE ELASTOMER SELECTED FROM THE GROUP CONSISTING OF POLYMERIZED VINYL CHLORIDE AND A 1,3-BUTADIENEACRYLONITRILE COPOLYMER, AND, AS PLASTICIZER AND ELASTICATOR, AN ESTER OF THE FORMULA
Claim 2
Dependent Claim
37 words
A PLASTICIZED ELASTICATED COMPOSITION OF MATTER OF LOW BRITTLE POINT COMPRISING A RUBBER-LIKE ELASTOMER SELECTED FROM THE GROUP CONSISTING OF POLYMERIZED VINYL CHLORIDE AND A 1,3-BUTADIENEACRYLONITRILE COPOLYMER, AND, AS PLASTICIZER AND ELASTICATOR, AN ESTER OF THE FORMULA
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) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |