Patent US3682768A successfully refreshed from Google Patents.
US3682768A
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Thermoformable laminated sheet material having elastomeric block copolymer core and abs plastic covering layers
Assignee: UNIROYAL PLASTICS COMPANY Inc WORLD HEADQUARTERS MIDDLEBURY CT 06749 A CORP OF
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Filing: 1970-03-09
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Granted: 1972-08-08
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Expires: 1990-03-09
Abstract
Abstract A THERMOFORMABLE LAMINATED SHEET MATERIAL, CHARACTERIZED BY HIGH IMPACT STRENGTH AT LOW TEMPERATURE, HAS A CORE LAYER MADE OF AN ELASTOMERIC BLOCK COPOLYMER OF STYRENE AND BUTADIENE, AND OUTER COVERING LAYERS OF ABS PLASTIC.
Inventors
- 👤 Gerald E Adams
- 👤 Edward C Van Buskirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:25
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/302; B32B2307/00; B32B2307/50; B32B2307/558; B32B2355/00; B32B2355/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31924; Y10T428/31928; Y10T428/31931; Y10T428/31935
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |