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Summary

Description
English: Image of the Bullworker X5 from the US patent (1981)
Date
Source https://patentimages.storage.googleapis.com/8b/80/74/3e0e1ae5a7b6ef/US4290600.pdf
Author Gert F. Kolbel

Licensing

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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Captions

Image of the Bullworker X5 from the US patent

Items portrayed in this file

depicts

22 September 1981

image/png

7869e336f8439fe224f99d4d43228bf4be5b33cf

62,725 byte

2,501 pixel

2,133 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current15:05, 21 August 2023Thumbnail for version as of 15:05, 21 August 20232,133 × 2,501 (61 KB)Obscure2020Extracted original images from PDF source using Inkscape. Re-cropped using GIMP. (I used the full-size drawings from pages 2 and 4 instead of the shrunken version on page 1.) Then optimized with OxiPNG and ZopfliPNG.
14:28, 11 August 2020Thumbnail for version as of 14:28, 11 August 2020753 × 702 (47 KB)MalevUploaded a work by Gert F. Kolbel from https://patentimages.storage.googleapis.com/8b/80/74/3e0e1ae5a7b6ef/US4290600.pdf with UploadWizard

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