US3400398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broadcast apparatus for position determining system
Assignee: Individual
•
Filing: 1967-03-13
•
Granted: 1968-09-03
•
Expires: 1987-03-13
Abstract
No abstract record available.
Inventors
- 👤 James M Lapeyre
- 👤 Robert F Couret
- 👤 Guy L Fougere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:15
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/02; G01S11/04; G01S1/00; G01S1/02; G01S1/08; G01S1/44; G01S1/54; G01S1/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB458347A
Cited
US2354665A
Cited
US3010416A
Cited
US2524758A
Cited
US2677821A
Cited
US3350714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |