US3016513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fm echo-ranging system
Assignee: Individual
•
Filing: 1943-05-26
•
Granted: 1962-01-09
•
Expires: 1963-05-26
Abstract
No abstract record available.
Inventors
- 👤 Karl S Van Dyke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:14
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/02; G01S15/06; G01S15/08; G01S15/32; G01S15/34; G01S15/42; Y; Y10; Y10S; Y10S367/00; Y10S367/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2045071A
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US2082317A
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US2169304A
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US2268587A
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US2248599A
Cited
US2256539A
Cited
US2405134A
Cited
US2553907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |