Patent US3256920A successfully refreshed from Google Patents.
US3256920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for increasing the traction of vehicle tires with icy road surfaces
Assignee: Individual
•
Filing: 1964-08-14
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Granted: 1966-06-21
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Expires: 1984-08-14
Abstract
No abstract record available.
Inventors
- 👤 Byers J Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:15
CPC Classifications
B; B60; B60B; B60B39/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
METHOD OF INCREASING THE TRACTION BETWEEN THE TREAD SURFACE OF A VEHICLE TIRE AND AN ICY ROAD SURFACE WITH WHICH SAID TIRE TREAD IS IN CONTACT, WHICH COMPRISES COOLING THE TREAD SURFACE OF THE TIRE TO A TEMPERATURE BELOW THE PREVAILING AMBIENT AIR TEMPERATURE AND TO AN EXTENT SUFFICIENT TO INCREASE SAID TRACTION.
Claim 2
Dependent Claim
53 words
METHOD OF INCREASING THE TRACTION BETWEEN THE TREAD SURFACE OF A VEHICLE TIRE AND AN ICY ROAD SURFACE WITH WHICH SAID TIRE TREAD IS IN CONTACT, WHICH COMPRISES COOLING THE TREAD SURFACE OF THE TIRE TO A TEMPERATURE BELOW THE PREVAILING AMBIENT AIR TEMPERATURE AND TO AN EXTENT SUFFICIENT TO INCREASE SAID TRACTION.
References Cited (Backward Citations)
US3077743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |