US3038515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated article
Assignee: Bridgestone Firestone Inc
•
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 11:39
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.
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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) | 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 |