Patent US3002875A successfully refreshed from Google Patents.
US3002875A
Expired / Lapsed
US
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Apparatus for building pneumatic tires
Assignee: Sumitomo Rubber USA LLC
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Filing: 1958-02-17
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Granted: 1961-10-03
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Expires: 1978-02-17
Abstract
No abstract record available.
Inventors
- 👤 Trevaskis Henry William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:13
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN EXPANSIBLE TIRE BUILDING DRUM COMPRISING A WEDGE MEMBER, A RESILIENT SLEEVE SURROUNDING THE WEDGE MEMBER HAVING AN INNER SURFACE SHAPED TO CONFORM WITH THE OUTER SURFACE OF THE WEDGE MEMBER, THE WEDGE MEMBER BEING SLIDABLE AXIALLY INTO AND OUT OF THE SLEEVE SO AS ALTERNATELY TO CAUSE THE SLEEVE UNIFORMLY TO EXPAND AND TO ALLOW IT TO CONTRACT, AND MEANS FOR RELATIVELY MOVING THE SLEEVE AND WEDGE MEMBER TO MOVE THE WEDGE MEMBER INTO AND OUT OF THE SLEEVE.
Claim 2
Dependent Claim
80 words
AN EXPANSIBLE TIRE BUILDING DRUM COMPRISING A WEDGE MEMBER, A RESILIENT SLEEVE SURROUNDING THE WEDGE MEMBER HAVING AN INNER SURFACE SHAPED TO CONFORM WITH THE OUTER SURFACE OF THE WEDGE MEMBER, THE WEDGE MEMBER BEING SLIDABLE AXIALLY INTO AND OUT OF THE SLEEVE SO AS ALTERNATELY TO CAUSE THE SLEEVE UNIFORMLY TO EXPAND AND TO ALLOW IT TO CONTRACT, AND MEANS FOR RELATIVELY MOVING THE SLEEVE AND WEDGE MEMBER TO MOVE THE WEDGE MEMBER INTO AND OUT OF THE SLEEVE.
References Cited (Backward Citations)
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US2084009A
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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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |