US3675700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow tire
Assignee: Compagnie Generale des Etablissements Michelin SCA
•
Filing: 1970-07-23
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Granted: 1972-07-11
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Expires: 1990-07-23
Abstract
Abstract The tread of a snow tire is formed with a plurality of spacedapart blocks in relief succeeding one another in the longitudinal direction and additional elements in relief connecting the spaced-apart blocks.
Inventors
- 👤 Henri Verdier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:15
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/14; B60C11/16; B60C11/1625; B60C11/03; B60C11/0306; B60C2011/0337; B60C2011/0339; B60C2011/0381; B60C2011/0383; B60C2011/0386; B60C2011/0388; B60C11/12; B60C11/1204; B60C2011/1213; B60C11/1236; B60C2011/1254; Y; Y10; Y10S; Y10S152/00; Y10S152/90
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
A snow tire comprising a tread, the tread being formed with a plurality of circumferentially continuous elements in relief and a plurality of circumferentially continuous grooves bounding and separating said elements in relief, each of said continuous elements in relief comprising wide island blocks connected by narrow isthmus blocks longitudinally adjacent thereto and each of said grooves having in main outline a substantially uniform width and being configured to form blocks alternately of the island and isthmus sort, so that deformation of said elements in relief is reduced and better traction is provided during rapid acceleration or deceleration.
Claim 2
Dependent Claim
98 words
A snow tire comprising a tread, the tread being formed with a plurality of circumferentially continuous elements in relief and a plurality of circumferentially continuous grooves bounding and separating said elements in relief, each of said continuous elements in relief comprising wide island blocks connected by narrow isthmus blocks longitudinally adjacent thereto and each of said grooves having in main outline a substantially uniform width and being configured to form blocks alternately of the island and isthmus sort, so that deformation of said elements in relief is reduced and better traction is provided during rapid acceleration or deceleration.
Claim 3
Dependent Claim
47 words
A snow tire according to claim 1 wherein an adjacent two of said circumferentially continuous grooves are alternately near to and remote from each other and, when near to each other, define an isthmus block therebetween and, when remote from each other, define an island block therebetween.
Claim 4
Dependent Claim
39 words
A snow tire according to claim 1 wherein said circumferentially continuous grooves comprise two wide grooves dividing the tread into a central portion and two lateral portions, the block structures on both sides of said wide grooves being similar.
Claim 5
Dependent Claim
47 words
A snow tire according to claim 1 wherein said circumferentially continuous grooves comprise two wide grooves dividing the tread into a central portion And two lateral portions, further comprising a plurality of transverse grooves connected to said wide grooves and indenting said circumferentially continuous elements in relief.
Claim 6
Dependent Claim
34 words
A snow tire according to claim 1 wherein the total area of the parts of the tread adapted to contact the ground is less than 60 percent of the total area of the tread.
References Cited (Backward Citations)
US3559711A
Cited
US3566948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |