US2440250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio location system
Assignee: International Standard Electric Corp
•
Filing: 1943-06-03
•
Granted: 1948-04-27
•
Expires: 1963-06-03
Abstract
No abstract record available.
Inventors
- 👤 Edmond M Deloraine
- 👤 Labin Emile
- 👤 Gloess Paul Francois Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:25
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1706185A
Cited
US2055883A
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US2083203A
Cited
US2251984A
Cited
US2207267A
Cited
GB526658A
Cited
US2225046A
Cited
US2301826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |