US PATENT SUBCLASS 313 / 572
.~.~ One torr thru 760 torr

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

567  DF  WITH GAS OR VAPOR {24}
568  DF  .~ Having a particular total or partial pressure {4}
572.~.~ One torr thru 760 torr {2}
573  DF  .~.~.~> Having specified envelope detail
574  DF  .~.~.~> With electrode structure {1}

DEFINITION

Classification: 313/572

One torr thru 760 torr:

(under subclass 568) Subject matter wherein the gas or vapor pressure within the envelope is from one torr to and including 760 torr.