Patent US3118672A successfully refreshed from Google Patents.
US2929337A
Expired / Lapsed
US
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Portable push car
Assignee: Individual
•
Filing: 1958-09-03
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Granted: 1960-03-22
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Expires: 1978-09-03
Abstract
No abstract record available.
Inventors
- 👤 Romans Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:13
CPC Classifications
B; B61; B61J; B61J3/00; B61J3/12; E; E21; E21F; E21F13/00; E21F13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US266163A
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US474855A
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US482180A
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US486031A
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US575465A
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US986981A
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US1342761A
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US1450846A
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US2177525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |