Portable rotary copper pipe cleaner
Patent 5307534 Issued on May 3, 1994. Estimated Expiration Date: 
February 8, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 8, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3188674 Tube abrading tool Cleaning tool with manual and power adaption Pipe polishing apparatus and method Tube end abrading tool Combination cleaner and reamer for tubes and fittings Patent #: 5099537 InventorApplicationNo. 017422 filed on 02/08/1993US Classes:15/4, Combined15/22.1, Handle mount15/23, Rotary cylinder15/88, Wire, rod, and tube cleaners15/104.04, Outside15/104.05, Inside15/104.095, Power source outside tube end451/344Portable abraderExaminersPrimary: Roberts, Edward L.Attorney, Agent or FirmInternational ClassesB08B 009/02A46B 013/02 AbstractA multi-purpose rotary pipe or tubing cleaner especially adapted for cleaning copper pipe and fittings for sweat soldering joints having rotary internal and external brushes and an internal reamer. | |
