US2452338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1947-02-14
•
Granted: 1948-10-26
•
Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
- 👤 Alonzo Z Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:41
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/40; B60P3/41
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2317784A
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US2361181A
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US2407993A
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US2412412A
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US2399304A
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US2433822A
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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) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |