US3679510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weather resistant moldable laminate
Assignee: Riegel Paper Corp
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Filing: 1970-08-06
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Granted: 1972-07-25
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Expires: 1990-08-06
Abstract
Abstract A LOW COST COMPOSITE MATERIAL HAVING PROPERTIES OF HIGH STRENGHT, EASY MOLDABILITY AND EXCELLENT OUTDOOR WEATHERING CHARACTERISTICS, AS WELL AS A SMOOTH AND DECORATIVE OUTER SURFACE IS DISCLOSE. THE NEW COMPOSITE MATERIAL INCLUDES AN OUTER LAYER OF CLEA, REVERSE PRINTED POLYVINYL FLUORIDE FILM ADHESIVELY BONDED TO A THERMOPLASTIC LAYER, WHICH IN TURN IS JOINED TO A REINFORCED POLYESTER BASE STRATUM. THE EXPOSED THERMOPLSTIC SURFACE OF THE POLYVINYL FLUORIDE-THERMOPLASTIC LAMINATE IS JOINED TO THE REINFORCED POLYESTER BASE STRATUM DURING CURING AND MOLDING OF THE POLYESTER MATERIAL WITHOUT THE USE OF A LAMINATING ADHESVIE.
Inventors
- 👤 Kenneth E Conley
- 👤 Thomas M Ellison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:04
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B32B27/065; B32B27/30; B32B27/302; B32B27/304; B32B27/36; B32B2262/00; B32B2262/10; B32B2262/101; B32B2307/00; B32B2307/70; B32B2307/712; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31536; Y10T428/3154; Y10T428/31551; Y10T428/31616
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |