Patent US5009391A successfully refreshed from Google Patents.
US3276273A
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Earth's magnetic field responsive apparatus
Assignee: Unisys Corp
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Filing: 1962-06-25
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Granted: 1966-10-04
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Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 Donald H Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:09
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/183; G01C21/188; G01C19/00; G01C19/02; G01C19/34; G01C19/36; G01C21/166; G01C21/18; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1232; Y10T74/125; Y10T74/1254
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN A REFERENCE SYSTEM FOR MOVABLE CRAFT, THE COMBINATION COMPRISING (1) FIRST MEANS FOR PROVIDING A FIRST SIGNAL REPRESENTATIVE OF SHORT-TERM DEVIATIONS IN THE ATTITUDE OF THE CRAFT FROM A PREDETERMINED ATTITUDE ABOUT A FIRST AXIS THEREOF, (2) MEANS FOR PROVIDING A SECOND SIGNAL REPRESENTATIVE OF THE DIRECTION OF THE TOTAL MAGNETIC FIELD OF THE EARTH WITH RESPECT TO EARTH AXES, (3) AND MEANS COUPLED WITH SAID FIRST MEANS AND RESPONSIVE TO SAID SECOND SIGNAL FOR PROVIDING THIRD AND FOURTH SIGNALS REPRESENTATIVE OF SHORT-TERM DEVIATIONS IN THE ATTITUDE OF THE AIRCRAFT FROM A PREDETERMINED ATTITUDE ABOUT A SECOND AND THIRD AXIS THEREOF.
Claim 2
Dependent Claim
102 words
IN A REFERENCE SYSTEM FOR MOVABLE CRAFT, THE COMBINATION COMPRISING (1) FIRST MEANS FOR PROVIDING A FIRST SIGNAL REPRESENTATIVE OF SHORT-TERM DEVIATIONS IN THE ATTITUDE OF THE CRAFT FROM A PREDETERMINED ATTITUDE ABOUT A FIRST AXIS THEREOF, (2) MEANS FOR PROVIDING A SECOND SIGNAL REPRESENTATIVE OF THE DIRECTION OF THE TOTAL MAGNETIC FIELD OF THE EARTH WITH RESPECT TO EARTH AXES, (3) AND MEANS COUPLED WITH SAID FIRST MEANS AND RESPONSIVE TO SAID SECOND SIGNAL FOR PROVIDING THIRD AND FOURTH SIGNALS REPRESENTATIVE OF SHORT-TERM DEVIATIONS IN THE ATTITUDE OF THE AIRCRAFT FROM A PREDETERMINED ATTITUDE ABOUT A SECOND AND THIRD AXIS THEREOF.
References Cited (Backward Citations)
US2835131A
Cited
US2998727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |