Patent US3237669A successfully refreshed from Google Patents.
US3237669A
Expired / Lapsed
US
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Tire casings for use on all types of terrain
Assignee: Compagnie Generale des Etablissements Michelin SCA
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Filing: 1964-04-07
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Granted: 1966-03-01
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Expires: 1984-04-07
Abstract
No abstract record available.
Inventors
- 👤 Travers Georges Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:47
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/03; B60C11/0311; B60C11/13; B60C11/1369; B60C2200/00; B60C2200/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN ALL-TERRAIN TIRE CASING HAVING A TREAD PORTION INCLUDING A SURFACE EXTENDING CIRCUMFERENTIALLY OF SAID CASING, SAID TREAD PORTION COMPRISING A ROW OF SPACED APART SUBSTANTIALLY POLYGONAL BLOCKS PROJECTING OUTWARDLY FROM AND DISPOSED CENTRALLY OF SAID SURFACE AND EXTENDING CIRCUMFERENTIALLY OF SAID CASING, SAID BLOCKS HAVING ANGULARLY RELATED LEADING AND TRAILING FACES, A BAR EXTENDING LATERALLY FROM ONE OF SAID TRAILING FACES ON EACH OF SAID BLOCKS AND PROJECTING OUTWARDLY FROM SAID SURFACE, SAID BARS EXTENDING ALTERNATIVELY IN OPPOSITE DIRECTIONS AND SEPARATED FROM SAID TRAILING FACE BY A GROOVE AND RIB PORTIONS OF LESS HEIGHT THAN SAID BLOCKS AND PROJECTING OUTWARDLY FROM SAID SURFACE AND SPANNING THE SPACES BETWEEN SAID BLOCKS AND REINFORCING SAID BLOCKS WITHOUT UNDULY STIFFENING THE CENTRAL PORTION OF SAID TREAD.
Claim 2
Dependent Claim
124 words
AN ALL-TERRAIN TIRE CASING HAVING A TREAD PORTION INCLUDING A SURFACE EXTENDING CIRCUMFERENTIALLY OF SAID CASING, SAID TREAD PORTION COMPRISING A ROW OF SPACED APART SUBSTANTIALLY POLYGONAL BLOCKS PROJECTING OUTWARDLY FROM AND DISPOSED CENTRALLY OF SAID SURFACE AND EXTENDING CIRCUMFERENTIALLY OF SAID CASING, SAID BLOCKS HAVING ANGULARLY RELATED LEADING AND TRAILING FACES, A BAR EXTENDING LATERALLY FROM ONE OF SAID TRAILING FACES ON EACH OF SAID BLOCKS AND PROJECTING OUTWARDLY FROM SAID SURFACE, SAID BARS EXTENDING ALTERNATIVELY IN OPPOSITE DIRECTIONS AND SEPARATED FROM SAID TRAILING FACE BY A GROOVE AND RIB PORTIONS OF LESS HEIGHT THAN SAID BLOCKS AND PROJECTING OUTWARDLY FROM SAID SURFACE AND SPANNING THE SPACES BETWEEN SAID BLOCKS AND REINFORCING SAID BLOCKS WITHOUT UNDULY STIFFENING THE CENTRAL PORTION OF SAID TREAD.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |