Expired, full termArchiveSolo inventor
Draining device
US 1,699,159 A · Inventors: PITT GUY L
Overview
1 drawing sheet
Every sheet is in the USPTO PDF.
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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 15, 1929. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 15, 1946.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledAugust 2, 1927
GrantedJanuary 15, 1929
Term endedJanuary 15, 1946
Application number—
Classification (CPC)E03B7/10 +2 more
Length4 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.