IP Library › Granted Patent US 6,616,733
Granted Patent Utility PCT National Stage Small
US 6,616,733 · Confirmation No. 1096

METHOD AND MEANS FOR FILTERING AN AIR STREAM WITH AN AQUEOUS FROTH

Inventor: Roy J. Pellegrin
Patented Case View Patent ↗
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2020-10-13 OATH Oath or Declaration filed 5 View
2019-03-19 OATH Oath or Declaration filed 5 View
2003-06-30 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-06-30 LET. Miscellaneous Incoming Letter 1 View
2003-06-30 C.AD Change of Address 1 View
2001-07-10 LET. Miscellaneous Incoming Letter 31 View
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Quick Facts
Patent No.
US 6,616,733
App. No.
09/889,235
Filed
2001-07-10
Effective Filing
2000-10-04
Granted
2003-09-09
Examiner
SMITH, DUANE
Art Unit
1724
PTA
-5 days