US3435872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety wheel rim and buffer therefor
Assignee: TILDEN W JOHNSON
•
Filing: 1967-02-09
•
Granted: 1969-04-01
•
Expires: 1987-02-09
Abstract
No abstract record available.
Inventors
- 👤 Tilden W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:42
CPC Classifications
B; B60; B60B; B60B11/00; B60B11/10; B60B21/00; B60B21/12; B60C; B60C17/00; B60C17/04; B60C17/06; B60C2017/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2941565A
Cited
US3028900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |