Patent US2438534A successfully refreshed from Google Patents.
US2438534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transportation vehicle
Assignee: Individual
•
Filing: 1944-07-12
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Granted: 1948-03-30
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Expires: 1964-07-12
Abstract
No abstract record available.
Inventors
- 👤 James E Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:42
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/40; B60P3/41
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323126A
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US1436999A
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US1461637A
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US1586042A
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US1570832A
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US1616295A
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US1761828A
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US1961513A
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US2035867A
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US2184198A
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US2187425A
Cited
US2327850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |