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App. No. 09/990,179 · Confirmation No. 1228

CONTINUOUS VACUUM REFINING METHOD OF MOLTEN METAL AND APPARATUS THEREOF

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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2005-12-08 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2001-11-21 TRNA Transmittal of New Application 2 View
2001-11-21 SPEC Specification 41 View
2001-11-21 CLM Claims 5 View
2001-11-21 ABST Abstract 1 View
2001-11-21 DRW Drawings-only black and white line drawings 8 View
2001-11-21 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
App. No.
09/990,179
Filed
2001-11-21
Granted
2003-08-19
Pub. No.
US20020121158A1
Art Unit
1742
PTA
-126 days