US2769160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical distance-measuring device
Assignee: Raytheon Co
•
Filing: 1953-03-20
•
Granted: 1956-10-30
•
Expires: 1973-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert A Fryklund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:14
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/02; H04N3/04; G; G01; G01S; G01S1/00; G01S1/72; G01S7/00; G01S7/52; G01S7/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1784137A
Cited
US2009449A
Cited
US2243343A
Cited
US2424981A
Cited
US2519698A
Cited
US2558577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |