Patent US2798526A successfully refreshed from Google Patents.
US2798526A
Expired / Lapsed
US
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Tubeless tire
Assignee: Uniroyal Inc
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Filing: 1954-11-02
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Granted: 1957-07-09
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Expires: 1974-11-02
Abstract
No abstract record available.
Inventors
- 👤 Lester C Peterson
- 👤 Harvey J Batts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:44
CPC Classifications
B; B60; B60C; B60C1/00; B60C1/0008
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
166 words
A VULCANIZED TUBELESS PNEUMATIC RUBBER TIRE COMPRISING A CARCASS FORMED WITH PLIES OF FABRIC COATED WITH RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER AND BUTADIENE-STYRENE RUBBERY COPOLYMERS, SAID CARCASS HAVING SURROUNDING SIDEWALL AND TREAD PORTIONS, THE INNERMOST PLY OF FABRIC BEING COATED ON ITS INSIDE FACE WITH A MIXTURE OF (1) RUBBER SELECTED FROM SAID GROUP AND (2) SUBSTANTIALLY FULLY RECLAIMED RUBBERY POLYMER OF A MAJOR PROPORTION OF ISOBUTYLENE AND A MINOR PROPORTION OF AN ALIPHATIC CONJUGATED DIOLFIN HYDROCARBON HAVING FROM 4 TO 6 CARBON ATOMS PER MOLECULE, SAID RECLAIMED RUBBERY COPOLYMER HAVING BEEN MADE BY HEATING A VULCANIZATE OF SAID RUBBERY COPOLYMER IN THE PRESENCE OF A RECLAMING OIL UNTIL SAID VULCANIZATE IS SUFFICIENTLY PLASTIC TO ENABLE IT TO BE FORMED INTO A CONTAINOUS SHEET AND TO BE RE-USED IN MAKING VULCANIZED RUBBER ARTICLES, AND AN INTERIOR AIR RETAINING LINER INTEGRALLY SECURED TO AND COALESCED WITH THE INNER RUBBER COATING ON SAID INNERMOST PLY BY VULCANIZATION IN SITU, SAID LINER BEING FORMED OF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |