Christmas tree series light string
Patent 4073564 Issued on February 14, 1978. Estimated Expiration Date: 
February 14, 1995. 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 14, 1995. 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 2071948 3344392 3874762 Christmas tree lighting series Patent #: 4005923 InventorApplicationNo. 05/767881 filed on 02/11/1977US Classes:439/651, Combined with plug having spaced, longitudinally engaging, prong-like contacts439/502, WITH FLACCID CONDUCTOR AND WITH ADDITIONAL CONNECTOR SPACED THEREALONG439/696Divided parallel to longitudinal engagement axis (e.g., formed of two casing halves)ExaminersPrimary: Abrams, NeilAbstractThis invention relates generally to Christmas tree lighting and particularly to a series string of Christmas tree lights wherein the series loop may be temporarily opened by separating the plug connector to permit untangling of the string and thereafter the loop restored for operatively connecting with a power source by again plugging together the halves of the connector. | |
