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Patent US2552453A successfully refreshed from Google Patents.
US2552453A
Expired / Lapsed
US
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Hand wheeled land vehicle
Assignee: ROLLAND RAYMOND RORK
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Filing: 1948-02-13
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Granted: 1951-05-08
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Expires: 1968-02-13
Abstract
No abstract record available.
Inventors
- 👤 Pintar William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:05
CPC Classifications
B; B62; B62B; B62B7/00; B62B7/04; B62B7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US44936A
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US210266A
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US1245339A
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US1170265A
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GB161485A
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GB168538A
Cited
US1662292A
Cited
US1729055A
Cited
US2055890A
Cited
FR811174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |