IP Library › Granted Patent US 6,769,221
Granted Patent Utility Small
US 6,769,221 · Confirmation No. 1728

STAIRWAY SYSTEM

Inventor: Robert H. Green
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2015-12-14 SES.REQ.ELC Assertion of entitlement to small entity status via Patent Application Information Retrieval(PAIR) 1 View
2008-06-25 COCIN Request for Certificate of Correction 2 View
2008-06-25 WFEE Fee Worksheet (SB06) 2 View
2008-06-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2005-01-27 COCOUT Certificate of Correction - Post Issue Communication 1 View
2004-04-26 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-04-26 LET. Miscellaneous Incoming Letter 1 View
2004-04-26 DRW Drawings-only black and white line drawings 9 View
2001-05-14 TRNA Transmittal of New Application 3 View
2001-05-14 SPEC Specification 10 View
2001-05-14 CLM Claims 6 View
2001-05-14 ABST Abstract 1 View
2001-05-14 DRW Drawings-only black and white line drawings 8 View
2001-05-14 OATH Oath or Declaration filed 3 View
2001-05-14 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,769,221
App. No.
09/855,635
Filed
2001-05-14
Granted
2004-08-03
Art Unit
3635
PTA
-357 days