US3578057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin pneumatic tire
Assignee: Bayer AG
•
Filing: 1968-05-27
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Granted: 1971-05-11
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Expires: 1988-05-27
Abstract
Abstract A pneumatic tire made from a synthetic resin is produced using a mold and an annular mold core and has a spacing layer arranged between the windings of a reinforcing insert and the internal surface of the tire.
Inventors
- 👤 Ulrich Knipp
- 👤 Eckhard Boigk
- 👤 Erwin Weinbrenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:55
CPC Classifications
B; B60; B60C; B60C5/00; B60C5/007; B60C9/00; B60C9/02; B60C9/023; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10855; Y10T152/10873
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
The tire of claim 1, wherein said filament is steel wire and said spacing insert is a yarn of substantially greater diameter disposed immediately below and contiguous to each of the inner of said steel wires.
Claim 2
Dependent Claim
28 words
The tire of claim 2, wherein said synthetic resin is an elastomeric urethane and wherein said internal surface in the areas below said reinforcing insert has molded elevations.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |