US3419097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single frame tracked carrier
Assignee: JOHN MINTO BOYD
•
Filing: 1966-03-21
•
Granted: 1968-12-31
•
Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Nodwell William Bruce
- 👤 Boyd John Minto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:50
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/34; B62; B62D; B62D55/00; B62D55/06; B62D55/065; B62D55/0655
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2180048A
Cited
GB537619A
Cited
US2598863A
Cited
US3023826A
Cited
US2933143A
Cited
US3265146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |