Patent US3038515A successfully refreshed from Google Patents.
US3038515A
Expired / Lapsed
US
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Laminated article
Assignee: Bridgestone Firestone Inc
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Filing: 1956-10-01
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Granted: 1962-06-12
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Expires: 1976-10-01
Abstract
No abstract record available.
Inventors
- 👤 Koch Robert Charles
- 👤 Walter C Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:40
CPC Classifications
B; B60; B60C; B60C1/00; B60C1/0008; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A PNEUMATIC TIRE OF THE TUBLESS VARIETY AN AIR IMPERVIOUS LINER EXTENDING ACROSS AND ADHERED TO THE OPEN BELLIED PORTION THEREOF FROM BEAD TO BEAD, SAID LINER COMPRISED OF A CHLORINATED COPOLYMER OF ISOBUTYLENE AND AN OPEN CHAIN CONJUGATED DIOLEFIN, AND A LAYER OF VULCANIZED RUBBERY COPOLYMER OF BUTADIENE AND STYRENE, CONTAINING NOT LESS THAN 20 PARTS OF HYDRATED SILICA BY WEIGHT BASED ON 100 PARTS BY WEIGHT OF RUBBERY COPOLYMER OF BUTADIENE AND STYRENE ADHERED INTERMEDIATE BETWEEN AND DIRECTLY TO ONE SURFACE OF SAID LINER AND TO THE ADJACENT RUBBERY PORTIONS OF THE TIRE.
Claim 2
Dependent Claim
96 words
IN A PNEUMATIC TIRE OF THE TUBLESS VARIETY AN AIR IMPERVIOUS LINER EXTENDING ACROSS AND ADHERED TO THE OPEN BELLIED PORTION THEREOF FROM BEAD TO BEAD, SAID LINER COMPRISED OF A CHLORINATED COPOLYMER OF ISOBUTYLENE AND AN OPEN CHAIN CONJUGATED DIOLEFIN, AND A LAYER OF VULCANIZED RUBBERY COPOLYMER OF BUTADIENE AND STYRENE, CONTAINING NOT LESS THAN 20 PARTS OF HYDRATED SILICA BY WEIGHT BASED ON 100 PARTS BY WEIGHT OF RUBBERY COPOLYMER OF BUTADIENE AND STYRENE ADHERED INTERMEDIATE BETWEEN AND DIRECTLY TO ONE SURFACE OF SAID LINER AND TO THE ADJACENT RUBBERY PORTIONS OF THE TIRE.
References Cited (Backward Citations)
US2467322A
Cited
US2442083A
Cited
US2498653A
Cited
US2583387A
Cited
US2698042A
Cited
US2668789A
Cited
US2698041A
Cited
US2825675A
Cited
US2824038A
Cited
US2760894A
Cited
US2788839A
Cited
US2825382A
Cited
US2804448A
Cited
US2944578A
Cited
US2874743A
Cited
US2891595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |