Double-shell closure having an arcuate groove
Patent 5836467 Issued on November 17, 1998. Estimated Expiration Date: 
May 22, 2017. 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.
May 22, 2017. 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 1577019 2423582 3079022 3606063 3848761 Safety closure container Combined bottle and screw cap assembly Bottle Autoclavable tissue culture container and closure Tamper evident wide mouth container and lid InventorAssigneeApplicationNo. 862077 filed on 05/22/1997US Classes:215/216, Flexible locking member integral with or attached to closure215/334Keeper formed only on inner wall of double-wall cap or consists of separate member on capExaminersPrimary: Cronin, Stephen K.Attorney, Agent or FirmInternational ClassB65D 055/02AbstractA closure is provided having concentric inner and outer spaced cylindrical shells attached at respective first distal ends thereof by a circular top wall. An arcuate groove is provided in an upper surface of the top wall integral with the inner cylindrical shell. | |
