US3361442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem wheel suspension
Assignee: Individual
•
Filing: 1965-04-08
•
Granted: 1968-01-02
•
Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Elwood H Willetts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/22; B60G11/23; B60G11/18; B60G11/20; B60G11/32; B60G11/34; B60G11/44; B60G15/00; B60G15/02; B60G15/04; B60G5/00; B60G5/02; B60G5/03; B60G5/04; B60G5/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |