US2425713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscopic range and height finder with adjustable reticles
Assignee: Individual
•
Filing: 1943-07-30
•
Granted: 1947-08-19
•
Expires: 1963-07-30
Abstract
No abstract record available.
Inventors
- 👤 Lindsay M Applegate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:44
CPC Classifications
G; G01; G01C; G01C3/00; G01C3/10; G01C3/14; G01C3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR741619A
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US778694A
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US934916A
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DE441773C
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GB325956A
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US1987765A
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GB428759A
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US2144257A
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US2155389A
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US2303099A
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US2362857A
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US2362588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-18 | 1951-02-17 | 1951-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-18 | 1955-02-17 | 1955-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-18 | 1959-02-17 | 1959-08-19 | $7700.00 | Window Closed / Lapsed |