Chimney cleaner
Patent 4657597 Issued on April 14, 1987. Estimated Expiration Date: 
October 4, 2005. 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.
October 4, 2005. 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.InventorsApplicationNo. 06/783267 filed on 10/04/1985US Classes:134/8, Hollow work, internal surface treatment15/104.069, Suspended by a taut member (e.g., wire, rope, chain, etc.)15/104.16Scraper, cutter, wiper or brushExaminersPrimary: Metz, Andrew H.Assistant: Cohen, Sharon T. Attorney, Agent or FirmInternational ClassesF23J 3/00 (20060101)F23J 3/02 (20060101) AbstractDisclosed is a chimney cleaner for cleaning a chimney flue wall. The cleaner comprises a plate having a scraping edge and support apparatus for suspending the plate between a weight and a flexible member. | |
