Patent US3412819A successfully refreshed from Google Patents.
US3412819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transportation system including electric vehicle
Assignee: Individual
•
Filing: 1966-10-14
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Granted: 1968-11-26
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Expires: 1986-10-14
Abstract
No abstract record available.
Inventors
- 👤 Le Roy W Kruckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:43
CPC Classifications
B; B63; B63B; B63B27/00; B63B27/10; B63B27/19; E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3405; E02F9/00; E02F9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190926348A
Cited
US1423889A
Cited
US1681385A
Cited
US1796418A
Cited
US2197289A
Cited
CH223404A
Cited
FR934718A
Cited
US2597615A
Cited
US3136435A
Cited
US3231117A
Cited
US3294187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |