File:USpatent3356858.djvu

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Original file (3,093 × 4,544 pixels, file size: 415 KB, MIME type: image/vnd.djvu, 10 pages)

Summary

Description
English: US patent 3356858: LOW STAND-BY POWER COMPLEMENTARY FIELD EFFECT CIRCUITRY.
Date
Source US Patent n° 3,356,858
Author US Government/Frank Wanlass
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}}.

Licensing

This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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inception

5 December 1967

File history

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Date/TimeThumbnailDimensionsUserComment
current13:30, 21 November 2009Thumbnail for version as of 13:30, 21 November 20093,093 × 4,544, 10 pages (415 KB)Copio{{Information |Description=US patent 3356858: LOW STAND-BY POWER COMPLEMENTARY FIELD EFFECT CIRCUITRY |Source=http://patimg1.uspto.gov/.piw?Docid=03356858 |Date=December 5, 1967 |Author=US Government/Frank Wanlass |Permission={{PD-US-patent-no notice}} |o
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