Image:COMBINED GRIDIRON AND SPIDER.pdf

From Wikipedia, the free encyclopedia

Image
File history
File links

COMBINED_GRIDIRON_AND_SPIDER.pdf‎ (file size: 76 KB, MIME type: application/pdf)

[edit] Summary

This image was uploaded in a non-image format. The information it contains could be stored more efficiently in the PNG format, the SVG format, or as plain text in an article.
If the information is encyclopedic, please integrate its text and information into an article, or consider copying it to Wikisource if it is freely licensed. If the contents are unencyclopedic or a copyright violation, please consider taking it to images for deletion or using the speedy deletion process. For more information, see Wikipedia:Preparing images for upload.

In general, the contents of United States patents are in the public domain.[1]

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:[2] [3]

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 image is in the public domain in the United States. In most cases, this means that it was first published prior to January 1, 1923 (see the template documentation for more cases). Other jurisdictions may have other rules, and this image might not be in the public domain outside the United States. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

Patent filed in 1830s

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	20:20, 3 February 2008	(76 KB)	Tomticker5 (Talk \| contribs)	({{Information \|Description= \|Source= \|Date= \|Location= \|Author= \|Permission= \|other_versions= }})