Connectors for a modular building set
Patent 5961365 Issued on October 5, 1999. Estimated Expiration Date: 
March 27, 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.
March 27, 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 1100061 1347808 2765580 3767237 3785066 Three-dimensional folded chain structures Assembly kit for making structural element Collapsible ornamental solids Structural node for large space structures Construction system InventorApplicationNo. 828032 filed on 03/27/1997US Classes:446/125, Including identically shaped interfitting portions52/656.9, Joint, connector403/170, Three or more radiating members446/109, Folding panel, strip, or connector446/126, Including three rod-like elements projecting from a fourth element or common connector446/128Including element having plural bosses for forming single jointExaminersPrimary: Hafer, Robert A.Assistant: Fossum, Laura Attorney, Agent or FirmForeign Patent References
International ClassesA63H 033/06E04C 002/38 F16D 001/00 AbstractA toy construction kit which includes a structural element or connector having a centre panel and two or more rectangular side panels connected to the centre panel. The side panels are folded to form sleeve members of triangular cross section which are insertable in, and frictionally engaged in a hollow structural member of triangular cross section. The structural members and connectors are fabricated of corrugated cardboard so that the construction kit is safe light-weight and disposable.Field of SearchIncludng fold line (to convert to toy)CONSTRUCTION TOY Folding panel, strip, or connector With separate diverse connector between adjacent panels or strips Including abutting elements having slots or apertures receiving discrete transverse connector Including three rod-like elements projecting from a fourth element or common connector Including identically shaped interfitting portions Including element having plural bosses for forming single joint Three-dimensional folded figure FOLDABLE, COLLAPSIBLE, OR HAVING PIVOTED PORTION Sheet material folded to form object Single sheet folded to form a three-dimensional display configuration Triangular prism Collapsible Folding display Joint, connector BRANCHED Three or more radiating members Polyhedral THREE OR MORE MEMBERS CONNECTED AT SINGLE LOCUS | |
