US2581358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system indicating craft position and movement
Assignee: Federal Telecommunication Laboratories Inc
•
Filing: 1946-02-05
•
Granted: 1952-01-08
•
Expires: 1966-02-05
Abstract
No abstract record available.
Inventors
- 👤 Henri G Busignies
- 👤 Paul R Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:28
CPC Classifications
G; G08; G08G; G08G5/00; G08G5/20; G08G5/22; G08G5/70; G08G5/72; G08G5/727
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |