Patent US3130401A successfully refreshed from Google Patents.
US3130401A
Expired / Lapsed
US
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Navigation system
Assignee: Bell Aerospace Corp
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Filing: 1960-10-07
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Granted: 1964-04-21
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Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Milford R Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:46
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A NAVIGATION CONTROL SYSTEM INCLUDING A PLURALITY OF PARTICIPATING CRAFT, EACH OF SAID CRAFT HAVING A TELEMETERING TRANSCEIVER, MEANS FOR TRANSMITTING REFERENCE BEARING SIGNALS AND VARIABLE BEARING SIGNALS TO SAID CRAFT, MEANS IN EACH SAID TRANSCEIVER FOR RECEIVING SAID REFERENCE BEARING SIGNALS AND VARIABLE BEARING SIGNALS, MEANS IN EACH SAID TRANSCEIVER FOR COMMUNICATING DISTANCE INFORMATION TO OTHER PARTICIPATING CRAFT AS A FUNCTION OF SAID REFERENCE BEARING AND VARIABLE BEARING SIGNALS, PLAN POSITION DISPLAY MEANS IN EACH SAID CRAFT, MEANS FOR PRODUCING A PPI
Claim 2
Dependent Claim
83 words
A NAVIGATION CONTROL SYSTEM INCLUDING A PLURALITY OF PARTICIPATING CRAFT, EACH OF SAID CRAFT HAVING A TELEMETERING TRANSCEIVER, MEANS FOR TRANSMITTING REFERENCE BEARING SIGNALS AND VARIABLE BEARING SIGNALS TO SAID CRAFT, MEANS IN EACH SAID TRANSCEIVER FOR RECEIVING SAID REFERENCE BEARING SIGNALS AND VARIABLE BEARING SIGNALS, MEANS IN EACH SAID TRANSCEIVER FOR COMMUNICATING DISTANCE INFORMATION TO OTHER PARTICIPATING CRAFT AS A FUNCTION OF SAID REFERENCE BEARING AND VARIABLE BEARING SIGNALS, PLAN POSITION DISPLAY MEANS IN EACH SAID CRAFT, MEANS FOR PRODUCING A PPI
References Cited (Backward Citations)
US2666198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |