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US2882783A
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US
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Radiant energy ground-clearance meter
Assignee: Servo Corp of America
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Filing: 1955-02-10
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Granted: 1959-04-21
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Expires: 1975-02-10
Abstract
No abstract record available.
Inventors
- 👤 Blackstone Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:09
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/12; G01C; G01C5/00; G01C5/005; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/585; G01S13/587
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2524807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |