IP Library › Granted Patent US 6,716,977
Granted Patent Utility
US 6,716,977 · Confirmation No. 9763

METHOD FOR MAKING CAPROLACTAM FROM IMPURE ACN WHEREIN AMMONIA AND WATER ARE REMOVED FROM CRUDE CAPROLACTAM IN A SIMPLE SEPARATION STEP AND THEN THA IS REMOVED FROM THE RESULTING CAPROLACTAM MELT

Patented Case View Patent ↗
⬇ PDF
 Code Description Pages PDF
2004-02-03 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-12-03 NOA Notice of Allowance and Fees Due (PTOL-85) 4 View
2003-12-03 NOA Notice of Allowance and Fees Due (PTOL-85) 1 View
2003-12-03 1449 List of References cited by applicant and considered by examiner 1 View
2003-12-03 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2003-11-07 A... Amendment/Request for Reconsideration-After Non-Final Rejection 1 View
2003-11-07 REM Applicant Arguments/Remarks Made in an Amendment 13 View
2003-11-07 FRPR Certified Copy of Foreign Priority Application 11 View
2003-11-07 LET. Miscellaneous Incoming Letter 1 View
2003-09-24 CTNF Non-Final Rejection 4 View
2003-09-24 892 List of references cited by examiner 1 View
2003-09-19 SRNT Examiner's search strategy and results 2 View
2003-08-28 IDS Information Disclosure Statement (IDS) Form (SB08) 3 View
2003-06-17 TRNA Transmittal of New Application 2 View
2003-06-17 ADS Application Data Sheet 1 View
2003-06-17 SPEC Specification 9 View
2003-06-17 CLM Claims 2 View
2003-06-17 ABST Abstract 1 View
2003-06-17 DRW Drawings-only black and white line drawings 2 View
2003-06-17 OATH Oath or Declaration filed 3 View
2003-06-17 IIFW Issue Information including classification, examiner, name, claim, renumbering, etc. 1 View
2003-06-17 SRFW Search information including classification, databases and other search related notes 1 View
2003-06-17 FWCLM Index of Claims 1 View
2003-06-17 TRNA Transmittal of New Application 2 View
2003-06-17 DRW Drawings-only black and white line drawings 2 View
2003-06-17 SPEC Specification 9 View
2003-06-17 CLM Claims 2 View
2003-06-17 ABST Abstract 1 View
2003-06-17 OATH Oath or Declaration filed 3 View
2003-06-17 WFEE Fee Worksheet (SB06) 1 View
2003-06-17 WFEE Fee Worksheet (SB06) 1 View
2003-06-17 ADS Application Data Sheet 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 6,716,977
App. No.
10/464,175
Filed
2003-06-17
Granted
2004-04-06
Examiner
KIFLE, BRUCK
Art Unit
1624
PTA
0 days