US3814712A
Expired / Lapsed
US
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Adhesives coatings and laminates utilizing ethylene copolymers and coal-tar pitch
Assignee: ROSENBERG DAVID E 930 OSAGE ROAD PITTSBURGH PENNSYLVANIA 15243
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Filing: 1971-11-24
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Granted: 1974-06-04
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Expires: 1991-11-24
Abstract
Abstract THERMOPLASTIC COMPOSITIONS OF MATTER COMPRISING COALTAR PITCH AND A MATERIAL SELECTED FROM (1) A TERPOLYMER OF ETHYLENE, VINYL ACETATE, AND AN ETHYLENICALLY-UNSATURATED CARBOXYLIC ACID AND (2) A MIXTURE OF COPOLYMERS OF ETHYLENE AND VINYL ACETATE AND OF ETHYLENE AND AN ETHYLENICALLY-UNSATURATED CARBOXYLIC ACID, EXHIBITING HIGH STRENGTH IN SHEAR AND PEEL OVER A WIDE TEMPERATURE RANGE, ARE PREPARED AND USED AS ADHESIVES AND COATINGS. LAMINATED MATERIALS UTILIZING SUCH COMPOSITIONS OF MATTER ARE ALSO DISCLOSED.
Inventors
- 👤 G Snyder
- 👤 R Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:47
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C; C08; C08L; C08L95/00; C09; C09D; C09D131/00; C09D131/02; C09D131/04; C09D133/00; C09D133/02; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J123/0846; C09J123/0853; C09J123/0869; C09J131/00; C09J131/02; C09J131/04; C09J133/00; C09J133/02; C09J195/00; F16L57/00; F16L57/06; F16L58/04; F16L58/10; F16L58/12; C08L2205/00; C08L2205/03; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0853; C08L23/0869; C08L2666/00; C08L2666/02; C08L2666/04
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |