US4722381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt structure having alternating S and Z twist cords
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1985-09-19
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Granted: 1988-02-02
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Expires: 2005-09-19
Abstract
Abstract A belt structure of a pneumatic tire with plies (13, 15) consisting of alternating S and Z twist cords and the edges of at least one ply folded.
Inventors
- 👤 William M. Hopkins
- 👤 James E. Koerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:07
CPC Classifications
B; B60; B60C; B60C9/00; B60C9/18; B60C9/26; B60C9/20; B60C9/2003; B60C9/2009
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
65 words
A tire comprising a belt structure extending circumferentially about the axis of rotation of the tire and disposed radially inward of a ground engaging tread, wherein the belt structure comprises at least one belt ply with the belt ply having at least one folded edge portion, the belt ply consists of adjacent "S" and "Z" twist cords that alternate in a side by side manner.
Claim 2
Dependent Claim
65 words
A tire comprising a belt structure extending circumferentially about the axis of rotation of the tire and disposed radially inward of a ground engaging tread, wherein the belt structure comprises at least one belt ply with the belt ply having at least one folded edge portion, the belt ply consists of adjacent "S" and "Z" twist cords that alternate in a side by side manner.
Claim 3
Dependent Claim
20 words
A tire according to claim 1 wherein each ply has alternating "S" and "Z" twist cords in a stress-relieved condition.
Claim 4
Dependent Claim
14 words
A tire as in claim 1 wherein the tire is a radial pneumatic tire.
Claim 5
Dependent Claim
14 words
A tire as in claim 2 wherein the tire is a radial pneumatic 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) | 1991-02-01 | 1991-08-03 | 1992-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-01 | 1995-08-03 | 1996-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-01 | 1999-08-03 | 2000-02-02 | $7700.00 | Window Closed / Lapsed |