File:US720818-Rotary engine. (1).jpg
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Summary
[edit]DescriptionUS720818-Rotary engine. (1).jpg | Patent held by Margareth E. Knight |
Date | |
Source | Google Patent |
Author | Margareth E. Knight |
Licensing
[edit]Public domainPublic domainfalsefalse |
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:US720818-Rotary_engine._(1).jpg |
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):
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:58, 27 January 2014 | ![]() | 1,824 × 2,906 (2.19 MB) | 1Veertje (talk | contribs) |
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Metadata
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Date and time of data generation | 13:21, 17 February 1903 |
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Orientation | Normal |
File change date and time | 17:42, 24 January 2014 |
Date and time of digitizing | 13:21, 17 February 1903 |
DateTimeOriginal subseconds | 86 |
DateTimeDigitized subseconds | 86 |
Unique image ID | B6FE5EE73C1440A7B3008F2187308AD9 |
Software used | Microsoft Photo Gallery 16.4.3508.205 |