US3553790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concealed tire vent mold
Assignee: Goodyear Tire and Rubber Co
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Filing: 1969-11-10
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Granted: 1971-01-12
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Expires: 1989-11-10
Abstract
Abstract THE INVENTION RELATES TO A TIRE MOLD HAVING A TIRERECEIVING CAVITY PROVIDED WITH VENT PASSAGES FOR THE ESCAPE OF TRAPPED AIR FROM THE MOLD CAVITY WHICH PASSAGES ARE PROVIDED BETWEEN THE SURFACE OF AN INSERTED BLADE, OR OTHER INSERTED DESIGN-FORMING ELEMENT, AND THE CONFRONTING SURFACE OF A RECESS IN THE MOLD IN WHICH THE ELEMENT IS INSERTED. PASSAGE ENTRY DIMENSIONS ALLOW AIR ESCAPE FLOW BUT PRECLUDE, OR AT LEAST MINIMIZE, THE ADMISSION OF RUBBER TIRE MATERIAL INTO THE PASSAGES.
Inventors
- 👤 Von H Brobeck
- 👤 Mike Zulick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:59
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/10; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0606; B29C33/42; B29D2030/0607; B29D2030/0613; B29D2030/0617; Y; Y10; Y10S; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |