IP Library Granted Patent US 6,357,257
Granted Patent Utility
US 6,357,257 · Confirmation No. 5321

CRYOGENIC INDUSTRIAL GAS LIQUEFACTION WITH AZEOTROPIC FLUID FORECOOLING

Patented Case View Patent ↗
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Code Description Pages PDF
2001-01-25 TRNA Transmittal of New Application 2 View
2001-01-25 SPEC Specification 14 View
2001-01-25 CLM Claims 3 View
2001-01-25 ABST Abstract 1 View
2001-01-25 DRW Drawings-only black and white line drawings 2 View
2001-01-25 OATH Oath or Declaration filed 1 View
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Quick Facts
Patent No.
US 6,357,257
App. No.
09/768,505
Filed
2001-01-25
Granted
2002-03-19
Art Unit
3744
PTA
-89 days