Pneumatic tire wear indicating tread pattern
USRE30518E · kind E · reissue
10Cited by
17References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Mar 2, 1999 |
Classification
- Technology area (CPC —)General
Abstract
A pneumatic tire and moulding matrix therefore, the tire tread incorporating a traction pattern which changes distinctively when only a predetermined amount of tread rubber remains, thus warning the tire user that his tire is approaching the legal or safe limit and will soon have to be replaced or retreaded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.