IP Library › Granted Patent US 6,655,874
Granted Patent Utility
US 6,655,874 · Confirmation No. 1541

METHOD AND APPARATUS FOR SLITTING FLEXIBLE PIPE IN AN UNDERGROUND BORE

Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2013-08-05 SES.LOSS Notification of loss of entitlement to small entity status 1 View
2013-08-05 N417 Electronic Filing System Acknowledgment Receipt 2 View
2011-01-07 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-01-07 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-12-21 PA.. Power of Attorney 2 View
2010-12-21 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-08-25 A.NA Amendment after Notice of Allowance (Rule 312) 1 View
2003-08-25 SPEC Specification 1 View
2003-08-25 REM Applicant Arguments/Remarks Made in an Amendment 1 View
2003-08-25 LET. Miscellaneous Incoming Letter 2 View
2003-08-18 A.NA Amendment after Notice of Allowance (Rule 312) 1 View
2003-08-18 SPEC Specification 1 View
2003-08-18 REM Applicant Arguments/Remarks Made in an Amendment 1 View
2003-08-18 LET. Miscellaneous Incoming Letter 3 View
2003-06-30 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-06-30 LET. Miscellaneous Incoming Letter 2 View
2003-06-30 LET. Miscellaneous Incoming Letter 1 View
2003-06-30 DRW Drawings-only black and white line drawings 6 View
2001-04-20 TRNA Transmittal of New Application 4 View
2001-04-20 SPEC Specification 9 View
2001-04-20 CLM Claims 5 View
2001-04-20 ABST Abstract 1 View
2001-04-20 DRW Drawings-only black and white line drawings 6 View
2001-04-20 LET. Miscellaneous Incoming Letter 1 View
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
Patent No.
US 6,655,874
App. No.
09/839,255
Filed
2001-04-20
Granted
2003-12-02
Pub. No.
US20020153170A1
Art Unit
3677
PTA
-98 days