US3351276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for inertially deriving ground track angle
Assignee: Individual
•
Filing: 1966-01-27
•
Granted: 1967-11-07
•
Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 James N Weikert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:48
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/78; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A DEVICE FOR DETERMINING THE GROUND TRACK ANGLE OF AN AIRCRAFT COMPRISING: AN INERTIAL GUIDANCE SYSTEM HAVING ORTHOGONAL VELOCITY COMPONENT OUTPUTS WITH RESPECT TO TRUE NORTH IN A COORDINATE FRAME OF REFERENCE; MEANS FOR COMPUTING THE ANGULAR DEVIATION OF SAID VELOCITY COMPONENTS FROM TRUE NORTH; AND
Claim 2
Independent Claim
46 words
A DEVICE FOR DETERMINING THE GROUND TRACK ANGLE OF AN AIRCRAFT COMPRISING: AN INERTIAL GUIDANCE SYSTEM HAVING ORTHOGONAL VELOCITY COMPONENT OUTPUTS WITH RESPECT TO TRUE NORTH IN A COORDINATE FRAME OF REFERENCE; MEANS FOR COMPUTING THE ANGULAR DEVIATION OF SAID VELOCITY COMPONENTS FROM TRUE NORTH; AND
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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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |