Patent Yard Sign in
Expired, full termArchiveSolo inventor

Charge for gas pressure operated blasting devices

US 2,154,221 A · Inventors: JAMES TAYLOR

USPTO PDF

Overview

The published document from the USPTO: abstract, claims, description and drawings. Open it full size

No Claude kit for weapons

Claude doesn't help design weapons, ammunition or explosives, so this page has no Reinvent kit. To develop this one, work with a federally licensed manufacturer (many of these items are regulated) and a registered patent attorney or agent, listed on the USPTO roster.

Read the whole patent

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.

Why it's free to use

  • Granted April 11, 1939. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by April 11, 1956.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledSeptember 2, 1937
GrantedApril 11, 1939
Term endedApril 11, 1956
Application number—
Classification (CPC)C06D5/06 +1 more
Length5 pages

Timeline

Timeline From USPTO dates

1938194019421944194619481950195219541956Application filedSep 2, 1937Patent grantedApril 11, 1939Term endedApril 11, 1956

Sources & verification