Patent Office Search
Now Allows You To Go Back
To 1790 ! !
Click here to
break out of Frame
Get full images of text and drawings of
all U.S. patents since the year 1790 from the PTO's site
at http://www.USPTO.gov/patft/index.html. Note that this is not keyword searchable. Key
word searching is only available for patents from 1976 to
present, while pre-1976 is searchable only by
A tiff viewer plug-in is
required for viewing these patents. We recommend
Tiffsurfer from http://www.visionshape.com.
Many other tiff file
viewers are available at www.tucows.com. Use the search engine to locate the software
by with search terms "tiff viewer" or tiff
plugin" to find programs on the TuCows web site.
Especially interesting is http://www.tmsinc.com/prizm/ which has built in OCR. The Optical Character
Recognition (OCR) feature makes it easy (If the image of
the text is clear) to lift text from scanned document
images without having to waste time re-typing.
Have you been
Scammed? Find out
what to do here.
PLEASE: Notify Us Of Any Errors Of FACT: ErrorOfFact@InventorEd.org
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