File:Einstein Refrigerator pat1781541 clarified.jpg

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Summary

Description
English: Clarified and annotated version of original Einstein Refrigerator drawing with colors showing phases.
Date
Source
Author Einstein/Szilard with annotations by P. Brandon Malloy

Licensing

Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.
  • 2012-10-06 05:29 Cosmicforce 1956×2224× (789465 bytes) Uploading a public-domain item using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]]

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6 October 2012

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Date/TimeThumbnailDimensionsUserComment
current15:05, 6 October 2012Thumbnail for version as of 15:05, 6 October 20121,956 × 2,224 (771 KB)Pbmalloy{{Information |Description=Clarified and annotated version of original Einstein Refrigerator drawing with colors showing phases |Source=http://www.google.com/patents?id=t0BRAAAAEBAJ&pg=PA1&source=gbs_selected_pages&cad=2#v=onepage&q&f=false |Date=06 Oc...
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