Expired, full termArchiveSolo inventor
Circuit arrangement, including a cathode-ray tube comprising cathode-ray beam deflecting means
US 2,591,981 A · Inventors: HENDRIK JONKER JOHAN LODEWIJK et al.
Overview
7 drawing sheets
Every sheet is in the USPTO PDF.
Open the USPTO PDFRead 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, and the Claude kit works from them.
Why it's free to use
- Granted April 8, 1952. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by April 8, 1969.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
Filed—
GrantedApril 8, 1952
Term endedApril 8, 1969
Application number—
Classification (CPC)H03K29/00 +2 more
Length15 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.