US2479606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air gauge detecting device
Assignee: ERNEST F POHL
•
Filing: 1944-06-06
•
Granted: 1949-08-23
•
Expires: 1964-06-06
Abstract
No abstract record available.
Inventors
- 👤 Isaac W Douglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
G; G01; G01B; G01B13/00; G01B13/16; Y; Y10; Y10S; Y10S33/00; Y10S33/02; Y10T; Y10T29/00; Y10T29/49; Y10T29/49764; Y10T29/49771; Y10T29/49776
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1901966A
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US1982528A
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US1919546A
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US1927750A
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GB350796A
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US1971271A
Cited
US2026187A
Cited
US2019541A
Cited
US2240278A
Cited
US2254259A
Cited
US2335390A
Cited
US2345732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |