US3220643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigation instrument
Assignee: Individual
•
Filing: 1963-10-01
•
Granted: 1965-11-30
•
Expires: 1983-10-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth P Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:08
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A NAVIGATIONAL AID COMPRISING GRAPHIC MEANS DEFINING A SERIES OF FINITE DISTANCES, INDICATOR MEANS HAVING TIME CALIBRATIONS ARRANGED ABOUT A CENTRAL AXIS AND ADAPTED TO BE DRIVEN AT A SPEED CORRESPONDING TO ONE VARIABLE, SAID AXIS BEING ADJUSTABLE WITH RESPECT TO SAID GRAPHIC MEANS, AND MEANS FOR BODILY CHANGING THE PROXIMATE RELATION OF
Claim 2
Dependent Claim
53 words
A NAVIGATIONAL AID COMPRISING GRAPHIC MEANS DEFINING A SERIES OF FINITE DISTANCES, INDICATOR MEANS HAVING TIME CALIBRATIONS ARRANGED ABOUT A CENTRAL AXIS AND ADAPTED TO BE DRIVEN AT A SPEED CORRESPONDING TO ONE VARIABLE, SAID AXIS BEING ADJUSTABLE WITH RESPECT TO SAID GRAPHIC MEANS, AND MEANS FOR BODILY CHANGING THE PROXIMATE RELATION OF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |