Tape closures
Patent 4000824 Issued on January 4, 1977. Estimated Expiration Date: 
January 4, 1994. 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 4, 1994. 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 1877606 2885105 2954139 3274013 3827591 InventorApplicationNo. 598820 filed on 07/24/1975US Classes:215/232, Retained by bonding or adhesive means215/246Shrinkable closure, fastener, or sealExaminersPrimary: Hart, Ro E.Attorney, Agent or FirmInternational ClassB65D 041/24AbstractFor wine bottles and similar containers, an improved heat-shrunk film tape secondary closure of the type employing a tear strip to facilitate opening. The film is formed of certain acrylonitrile:methylacrylate or butadiene:styrene copolymers, which conform smoothly and tear cleanly, thereby enhancing the appearance of both the sealed and opened containers. | |
