US3417831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand truck with power lift
Assignee: SAMUEL H LAKE JR
•
Filing: 1966-08-15
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Granted: 1968-12-24
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Expires: 1986-08-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Samuel H Lake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:08
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/02; B62B5/023; B62B2301/00; B62B2301/25; B62B2301/256
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) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |