US3793420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic infinitely adjustable side plate for tire curing machine
Assignee: CHURCH HENRY A IV
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Filing: 1971-09-17
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Granted: 1974-02-19
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Expires: 1991-09-17
Abstract
Abstract In the process of retreading pneumatic tires, a method for supporting a portion of the exterior of a pneumatic tire during vulcanization with fluid pressure, such that the tire is held in exactly the correct position within the mold or matrix so that fluid pressure in the interior of the tire exerts the proper force against the mold or matrix.
Inventors
- 👤 J Fredricks
- 👤 S Smythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:35
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0606; B29D30/52; B29D30/54; B29D30/58; B29D2030/582
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |