Patent US2869108A successfully refreshed from Google Patents.
US2869108A
Expired / Lapsed
US
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Sonic radio link wave height meter
Assignee: Individual
•
Filing: 1949-12-09
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Granted: 1959-01-13
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Expires: 1969-12-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:07
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/003; G01S7/02; G01S7/40; G01S7/4052; G01S7/4082; G01S7/4091; Y; Y10; Y10S; Y10S367/00; Y10S367/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US283091A
Cited
US2156519A
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US2447069A
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US2422337A
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US2361177A
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US2465993A
Cited
US2418846A
Cited
US2449085A
Cited
US2567229A
Cited
US2465696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |