IP Library Granted Patent US 6,622,508
Granted Patent Utility PCT National Stage
US 6,622,508 · Confirmation No. 2420

METHOD FOR HEAT AND HUMIDITY EXCHANGE BETWEEN TWO AIR STREAMS AND APPARATUS THEREFOR

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Code Description Pages PDF
2003-07-25 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-07-25 LET. Miscellaneous Incoming Letter 1 View
2002-03-25 TRNA Transmittal of New Application 2 View
2002-03-25 A.PE Preliminary Amendment 5 View
2002-03-25 SPEC Specification 8 View
2002-03-25 CLM Claims 4 View
2002-03-25 DRW Drawings-only black and white line drawings 3 View
2002-03-25 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,622,508
App. No.
10/018,832
Filed
2002-03-25
Effective Filing
2001-12-18
Granted
2003-09-23
Pub. No.
US20020129614A1
Art Unit
3744
PTA
0 days