US3856067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire
Assignee: Semperit AG Holding
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Filing: 1973-03-26
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Granted: 1974-12-24
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Expires: 1993-03-26
Abstract
Abstract A pneumatic tire and method of fabricating same in which the tread surface is at least partially roughened during the fabrication of the tire.
Inventors
- 👤 W Gorter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:00
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/03; B60C11/032; B60C11/0306; B60C2011/0337; B60C2011/0386; B60C2011/0388
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A pneumatic tire includes an outer tread surface which in use contacts the surface of the ground, said tread surface is covered by a vulcanization skin and has a plurality of spaced grooves each of which extends into said tread surface to a depth in the order of centimeters, said grooves defining a plurality of areas of the outer tread surface in which said vulcanization skin is substantially continuous and unbroken, said unbroken vulcanization skin in each of said areas including a substantially regular pattern of arcuate indentations having depths ranging between 0.1 and 1 mm measured from said outer tread surfacE, and said pattern of said indentations corresponding to the surface pattern of a textile material.
Claim 2
Dependent Claim
117 words
A pneumatic tire includes an outer tread surface which in use contacts the surface of the ground, said tread surface is covered by a vulcanization skin and has a plurality of spaced grooves each of which extends into said tread surface to a depth in the order of centimeters, said grooves defining a plurality of areas of the outer tread surface in which said vulcanization skin is substantially continuous and unbroken, said unbroken vulcanization skin in each of said areas including a substantially regular pattern of arcuate indentations having depths ranging between 0.1 and 1 mm measured from said outer tread surfacE, and said pattern of said indentations corresponding to the surface pattern of a textile material.
Claim 3
Dependent Claim
17 words
A pneumatic tire as claimed in claim 1, in which said textile material is a woven fabric.
Claim 4
Dependent Claim
17 words
A pneumatic tire as claimed in claim 1 in which said textile material is a knitted fabric.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |