IP Library › Patent Application 09936259
Patent Application Utility PCT National Stage
App. No. 09/936,259 · Confirmation No. 2373

DOWNHOLE APPARATUS

Inventor: Colin McHardy
Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗
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 Code Description Pages PDF
2004-02-12 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-02-12 A... Amendment/Request for Reconsideration-After Non-Final Rejection 1 View
2004-02-12 REM Applicant Arguments/Remarks Made in an Amendment 1 View
2004-02-12 LET. Miscellaneous Incoming Letter 1 View
2004-02-12 DRW Drawings-only black and white line drawings 4 View
2002-04-22 LET. Miscellaneous Incoming Letter 38 View
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Quick Facts
App. No.
09/936,259
Filed
2002-04-22
Effective Filing
2001-09-06
Granted
2004-04-27
Art Unit
3672
PTA
0 days