File:US Patent 2424267 Figs 1a, 1b, 1c.PNG

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Description figure 1a, 1b and 1c from US patent 2424267, Philip S. Carter, "High frequency resonator and circuits therefor", granted 1947-07-22 , assigned to Radio Corporation of America 
Date original upload dateenwiki 2008-01-23
Source From patent document.
Author Philip S. Carter
Permission
(Reusing this file)
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.
Upload date User Bytes Dimensions Comment
2008-01-24 04:01:55 Oleg Alexandrov 25392 206×390 crop
2008-01-23 19:59:45 Reddi 16529 235×424 {{Information |Description=US Patent 2357313 |Source=US Patent 2357313 |Date=Sep 1944 |Location= |Author=Philip S. Carter (Radio Corporation of America) |Permission= |other_versions= }}

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Date/TimeThumbnailDimensionsUserComment
current18:51, 28 November 2009Thumbnail for version as of 18:51, 28 November 2009206 × 390 (25 KB)CommonsHelper2 Bot {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description = {{en|US Patent 2357313}} |Source = {{en|US Patent 2357313}} |Date = Sep 1944 |Location = |Author = Phili
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