US3170195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanizing member with venting means
Assignee: Bridgestone Firestone Inc
•
Filing: 1961-02-20
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Granted: 1965-02-23
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Expires: 1981-02-20
Abstract
No abstract record available.
Inventors
- 👤 Knox Harold Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:01
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0662; B29C; B29C33/00; B29C33/10; B29C43/00; B29C43/02; B29C43/021; B29C43/10; B29C43/102; B29C43/104; B29C43/32; B29C43/36; B29C43/3642; B29C43/12; B29L; B29L2030/00; Y; Y10; Y10S; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A MEMBER TO EXERT FORCE UPON THE INNER SURFACE OF AN UNVULCANIZED PNEUMATIC TIRE DURING THE SHAPING AND VULCANIZING OPERATIONS IN A TIRE MOLD, COMPRISING AN EXPANSIBLE, RUBBERY DIAPHRAGM WALL HAVING MEANS IN THE OUTER SURFACE THEREOF TO VENT AIR OUTWARDLY FROM BETWEEN SAID WALL AND SAID INNER TIRE SURFACE TO A POINT ESCAPE IN THE TIRE MOLD BEYOND THE TIRE, SAID MEANS COMPRISING A PLURALITY OF LAND PORTIONS OF LIMITED AREA DISTRIBUTED OVER SAID WALL AND BEYOND THE BEAD AREAS OF SAID TIRE AND SEPARATED BY INTERCONNECTED CHANNELS OF VARYING DEPTH TRAVERSING SAID DIAPHRAGM WALL.
Claim 2
Dependent Claim
96 words
A MEMBER TO EXERT FORCE UPON THE INNER SURFACE OF AN UNVULCANIZED PNEUMATIC TIRE DURING THE SHAPING AND VULCANIZING OPERATIONS IN A TIRE MOLD, COMPRISING AN EXPANSIBLE, RUBBERY DIAPHRAGM WALL HAVING MEANS IN THE OUTER SURFACE THEREOF TO VENT AIR OUTWARDLY FROM BETWEEN SAID WALL AND SAID INNER TIRE SURFACE TO A POINT ESCAPE IN THE TIRE MOLD BEYOND THE TIRE, SAID MEANS COMPRISING A PLURALITY OF LAND PORTIONS OF LIMITED AREA DISTRIBUTED OVER SAID WALL AND BEYOND THE BEAD AREAS OF SAID TIRE AND SEPARATED BY INTERCONNECTED CHANNELS OF VARYING DEPTH TRAVERSING SAID DIAPHRAGM WALL.
References Cited (Backward Citations)
US2476831A
Cited
US2678468A
Cited
US2712847A
Cited
US2790205A
Cited
US2851729A
Cited
US2983638A
Cited
US2962757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |