US2770310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power propelled hand truck
Assignee: Individual
•
Filing: 1953-02-19
•
Granted: 1956-11-13
•
Expires: 1973-02-19
Abstract
No abstract record available.
Inventors
- 👤 Gates Joseph Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:40
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/02; B62B2301/00; B62B2301/25; B62B2301/256
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1221739A
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US1376648A
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US1296309A
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GB693983A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |