US3554027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling tire durability, simulating climatic conditions, and control of oxidation rates in pneumatic tires
Assignee: Individual
•
Filing: 1969-04-04
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Granted: 1971-01-12
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Expires: 1989-04-04
Abstract
Abstract A METHOD OF CONTROLLING TIRE DURABILITY BY CONTROLLING THE PERCENTAGE COMPOSITION OF OXIDANT CONTAINED IN THE INFATING AGENT. THE PERCENTAGE COMPOSITION OF THE OXIDANT MAY ALSO BE USED TO SIMULATE CLAMATIC CONDITIONS WHEREIN THE EFFECTIVE OXIDATIVE DEGRADATION OF THE TIRE IS CAUSED TO PROCEED AT A RATE EQUIVALENT TO THE RATE EXPECTED AT A GEOGRAPHICAL LOCATION DIFFERENT FROM THE GEOGRAPHICAL LOCALTION WHERE THE TIRE IS BEING USED AND AT SEASONS OF THE YEAR DIFFERENT FROM THE SEASON WHERE THE TESTING IS ACUTALLY ACCOMPLISHED. THIS PROCEDURE ALSO PERMITS A RAPID MEANS OF EVALUATION OF TIRE LINERS AND OTHER TIRE BODY ELEMENTS.
Inventors
- 👤 Lawrence R Sperberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
G; G01; G01N; G01N17/00; B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0633; B60; B60C; B60C19/00; B60C5/00; B60C5/001; G01N33/00; G01N33/0078; G01N33/0083; G01N33/0085
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 |