Patent US3193428A successfully refreshed from Google Patents.
US3193428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamination of polymeric 3, 3-bis(chloromethyl) oxetane to butadiene-acrylonitrile rubber
Assignee: Hercules Powder Co
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Filing: 1961-11-15
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Granted: 1965-07-06
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Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 David A Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:08
CPC Classifications
B; B32; B32B; B32B27/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A PROCESS FOR PREPARING A LAMINATE COMPRISING A LAYER CONSISTING ESSENTIALLY OF PLASTICIZED, VULCANIZABLE BUTADIENE-ACRYLONITRILE RUBBER CONTAINING A MAJOR PORTION OF BUTADIENE ADHESIVELY SECURED TO A LAYER OF A HOMOPOLYMER OF 3,3-BIS(CHLOROMETHYL)OXETANE HAVING A MOLECULAR WEIGHT IN EXCESS OF 10,000, WHICH COMPRISES MELT EXTRUDING A SHEET OF SAID HOMOPOLYMER OF 3,3-BIS(CHLOROMETHYL)OXETANE HAVING A MOLECULAR WEIGHT IN EXCESS OF 10,000 ONTO A MOVING WEB OF UNVULCANIZED BUTADIENEACRYLONITRILE RUBBER, AND COOLING THE RESULTANT LAMINATE.
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |