Shotshells
Patent 4290365 Issued on September 22, 1981. Estimated Expiration Date: 
January 29, 1999. 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.
January 29, 1999. 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 2144232 2772634 3221658 3721197 InventorApplicationNo. 06/007250 filed on 01/29/1979US Classes:102/449, Shot container102/464, Case102/532WADSExaminersPrimary: Tudor, Harold J.Attorney, Agent or FirmInternational ClassesF42B 7/12 (20060101)F42B 5/28 (20060101) F42B 7/00 (20060101) F42B 5/00 (20060101) F42B 7/04 (20060101) Foreign Application Priority Data1978-02-03 ZAAbstractThe present invention provides a shotshell including a cartridge case having a metal sidewall defining an open end of the case. A charge is contained in the case and retained by an overshot plug which is a friction fit in the case. The sidewall has a thickness of not less than 0.5 mm and may have a formation for engaging a formation on the plug to locate the plug in position.Shotshell components can be provided as a kit which may include two identical plugs each having a closed air bleed hole which can be extended to pass through the plug. A plug with a completed hole can be used as an overpowder plug while the overshot plug can be used with the hole closed. | |
