The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 1980
Filed:
Mar. 03, 1978
Applicant:
Inventor:
Scott A Rogers, Richmond, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09B / ;
U.S. Cl.
CPC ...
35 44 ;
Abstract
A planetarium educational device which illustrates the relative positioning and movement of the earth, moon, sun and other celestial objects in the solar system. The device also provides an illustrative means for depicting the changes in the ocean tides with respect to time, the time changes of selected points on the earth as the earth cycles through a day as well as a means for visually determining the portion of the earth in each day and for measuring of the elevational position of celestial objects above the horizon, azimuths and for generally teaching various aspects of celestial navigation.