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US2452930A
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Assignee: Individual
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Filing: 1945-06-01
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Granted: 1948-11-02
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Expires: 1965-06-01
Abstract
No abstract record available.
Inventors
- 👤 Julius C Ivey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:02
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/36; B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0078; B25H1/0085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |