US2948856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct reading type measuring system for time difference or phase difference betweentwo received signal waves
Assignee: Koden Electronics Co Ltd
•
Filing: 1957-12-05
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Granted: 1960-08-09
•
Expires: 1977-12-05
Abstract
No abstract record available.
Inventors
- 👤 Tanaka Isokazu
- 👤 Kurimura Shizuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:25
CPC Classifications
G; G04; G04F; G04F10/00; G04F10/06; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2621238A
Cited
US2811716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |