|
The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See
37 CFR 1.71(d)
,
37 CFR 1.84(s)
The original patent contains no such notice, so its contents are in the public domain.
Note:
This only applies to images published
before
March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as
{{PD-ineligible}}
.
|
