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Description
English: Patent diagram of Smudge Pot
Date
Source http://bp1.blogger.com/_7t8hagAzBe0/SDu_b4oVB5I/AAAAAAAABHI/7ScZ1uZlVEI/s1600-h/Smudge+Pot+Patent.jpg
Author Unknown authorUnknown author

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Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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May or may not be in the public domain
 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):

A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by any­one of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.

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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Date/TimeThumbnailDimensionsUserComment
current06:18, 27 September 2008Thumbnail for version as of 06:18, 27 September 2008412 × 590 (45 KB)Rotational~commonswiki{{Information |Description={{en|1=Patent diagram of Smudge Pot}} |Source=http://bp1.blogger.com/_7t8hagAzBe0/SDu_b4oVB5I/AAAAAAAABHI/7ScZ1uZlVEI/s1600-h/Smudge+Pot+Patent.jpg |Author=Patent office |Date=1924 |Permission=Public domain |other_versions= }}

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