Patent US1330763A successfully refreshed from Google Patents.
Patent US3649714A successfully refreshed from Google Patents.
US3649714A
Expired / Lapsed
US
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Structural adhesive comprising a dicyanate and a copolymer of acrylonitrile and butadiene
Assignee: 3M Co
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Filing: 1969-01-10
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Granted: 1972-03-14
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Expires: 1989-01-10
Abstract
Abstract A MIXTURE OF DICYANATE, SUCH AS THE DICYANATED OF BISPHENOL A, AND COMPATIBLE, UNCURED SYNTHETIC ELASTOMER (E.G., ACRYLONITRILE-BUTADIENE COPOLYMER) IS USED AS A NONVOLATILE, FILM-FORMING, HEAT-CURABLE, STRUCTURAL METAL-BONDING ADHESIVE TO PRODUCE A THEMALLY STABLE BOND HAVING DESIRABLY HIGH STRENGTHS IN SHEAR, TENSION, AND PEEL.
Inventors
- 👤 David A Wangsness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:23
CPC Classifications
C; C09; C09J; C09J109/00; C09J109/02; C08; C08K; C08K5/00; C08K5/16; C08K5/29
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |