US2742300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knock-down wheelbarrow
Assignee: Individual
•
Filing: 1954-05-14
•
Granted: 1956-04-17
•
Expires: 1974-05-14
Abstract
No abstract record available.
Inventors
- 👤 Carver Leo Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:53
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/18; B62B1/20; B62B1/206; F; F16; F16B; F16B2200/00; F16B2200/65; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US324606A
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US471639A
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US1475257A
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US1630975A
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US2040339A
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US2199704A
Cited
GB531757A
Cited
US2381618A
Cited
US2553334A
Cited
US2639160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |