File:Walter Sammons hot comb.png
![File:Walter Sammons hot comb.png](https://upload.wikimedia.org/wikipedia/commons/thumb/0/09/Walter_Sammons_hot_comb.png/446px-Walter_Sammons_hot_comb.png?20110527012143)
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Summary
[edit]DescriptionWalter Sammons hot comb.png |
English: An illustration from Walter Sammon's 1920 patent for a hot comb |
Date | |
Source | http://www.freepatentsonline.com/1362823.html |
Author | Walter Sammons |
Licensing
[edit]Public domainPublic domainfalsefalse |
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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Public domainPublic domainfalsefalse |
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In general, the contents of United States patents are in the public domain.
In specific cases, patent applicants and holders may claim copyright in portions of those documents. In those specific cases, applicants are required to identify the portions that are protected under copyright, and are additionally required to state the following within the body of the application and patent (see 37 CFR 1.71(d) & (e) and 37 CFR 1.84(s), and MPEP § 608.01(e) & (w) and MPEP § 1512):
The original patent should be checked for the presence of such language before an assumption is made that the contents are in the public domain. (This template can be replaced by {{PD-US-patent-no notice}} in such cases.) |
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current | 01:21, 27 May 2011 | ![]() | 687 × 924 (108 KB) | InverseHypercube (talk | contribs) |
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