Patent US2404256A successfully refreshed from Google Patents.
US2404256A
Expired / Lapsed
US
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Mechanically propelled vehicle
Assignee: Individual
•
Filing: 1944-02-16
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Granted: 1946-07-16
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Expires: 1964-02-16
Abstract
No abstract record available.
Inventors
- 👤 Tapp Ernest Thomas James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:46
CPC Classifications
F; F41; F41H; F41H7/00; F41H7/02; F41H7/04; F41H7/044; B; B62; B62D; B62D55/00; B62D55/08; B62D55/104; B62D55/116; F41A; F41A23/00; F41A23/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-07-15 | 1950-01-14 | 1950-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-07-15 | 1954-01-14 | 1954-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-07-15 | 1958-01-14 | 1958-07-16 | $7700.00 | Window Closed / Lapsed |