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US2808621A
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Method of and apparatus for manufacturing anti-skid tires
Assignee: Goodyear Tire and Rubber Co
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Filing: 1951-11-17
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Granted: 1957-10-08
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Expires: 1971-11-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Torrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:31
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/14; B60C11/20; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29D30/66; B29D2030/662; Y; Y10; Y10S; Y10S425/00; Y10S425/033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN THE MANUFACTURE OF AN ANTI-SKID PNEUMATIC TIRE, THE METHOD OF EMPLOYED A VULCANIZING MOLD FOR INCORPORATING IN THE TREAD PORTION OF THE TIRE A MULTIPLICITY OF METALLIC FRICTION ELEMENTS, SAID METHOD COMPRISING THE STEPS OF PROVDING A PLURALITY OF MAGNETS IN THE RECESSES OF THE FORMING A PART OF THE TREAD FORMING PORTION OF LTHE MOLD; INTRODUCING THE SEVERAL METALLIC FRICTION ELEMENTS SHORTER IN LENGTH THAN SAID RECESSES TO THE SEVERAL FIELDS OF SAID MAGNETS ANS SHIFTING SAID ELEMENTS WITHIN SAID MOLD, WHEREBY THE ELEMENTS ARE TEMPORARILY HELD IN
Claim 2
Dependent Claim
90 words
IN THE MANUFACTURE OF AN ANTI-SKID PNEUMATIC TIRE, THE METHOD OF EMPLOYED A VULCANIZING MOLD FOR INCORPORATING IN THE TREAD PORTION OF THE TIRE A MULTIPLICITY OF METALLIC FRICTION ELEMENTS, SAID METHOD COMPRISING THE STEPS OF PROVDING A PLURALITY OF MAGNETS IN THE RECESSES OF THE FORMING A PART OF THE TREAD FORMING PORTION OF LTHE MOLD; INTRODUCING THE SEVERAL METALLIC FRICTION ELEMENTS SHORTER IN LENGTH THAN SAID RECESSES TO THE SEVERAL FIELDS OF SAID MAGNETS ANS SHIFTING SAID ELEMENTS WITHIN SAID MOLD, WHEREBY THE ELEMENTS ARE TEMPORARILY HELD IN
References Cited (Backward Citations)
US1836690A
Cited
US2121956A
Cited
US2297923A
Cited
GB556396A
Cited
US2619678A
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US2465276A
Cited
US2618812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |