IP Library › Granted Patent US 6,401,471
Granted Patent Utility
US 6,401,471 · Confirmation No. 2772

EXPANSION DEVICE FOR VAPOR COMPRESSION SYSTEM

Inventor: David A. Wightman
Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2001-11-20 TRNA Transmittal of New Application 3 View
2001-11-20 A.PE Preliminary Amendment 2 View
2001-11-20 SPEC Specification 13 View
2001-11-20 CLM Claims 4 View
2001-11-20 ABST Abstract 1 View
2001-11-20 DRW Drawings-only black and white line drawings 5 View
2001-11-20 OATH Oath or Declaration filed 2 View
2001-11-20 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,401,471
App. No.
09/990,660
Filed
2001-11-20
Granted
2002-06-11
Pub. No.
US20020033025A1
Art Unit
3742
PTA
0 days