US2966657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic direction finder
Assignee: Individual
•
Filing: 1949-03-31
•
Granted: 1960-12-27
•
Expires: 1969-03-31
Abstract
No abstract record available.
Inventors
- 👤 James F Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:54
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/80; G01S3/802; G01S3/8027; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2282402A
Cited
US2216517A
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US2237457A
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US2405604A
Cited
US2538040A
Cited
US2406014A
Cited
US2489254A
Cited
US2434644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |