US3748291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane tire yarn finish additive
Assignee: Goodyear Tire and Rubber Co
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Filing: 1971-10-29
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Granted: 1973-07-24
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Expires: 1991-10-29
Abstract
Abstract POLYURETHANE ALONE OR IN COMBINATION WITH EPOXIDES OR IN COMBINATION WITH MELAMINE/FORMALDEHYDE RESINS AS ADHESION PROMOTING AGENTS ARE ADDED TO TIRE YARN USED IN MAK- SPINNING COMPOSITION APPLIED TO TIRE YARN USED IN MAKING TIRE REINFORCING CORD AS A MEANS OF PROMOTING ADHESION BETWEEN THE CORD AND THE RUBBER WHEN USING A CONVENTIONAL R/F/L ADHESIVE.
Inventors
- 👤 R Bhakuni
- 👤 J Cormany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:50
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; C09J175/08; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08L; C08L63/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/16
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |