Collapsible container
Patent 5174458 Issued on December 29, 1992. Estimated Expiration Date: 
May 12, 2012. 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 12, 2012. 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 ReferencesInventorApplicationNo. 881959 filed on 05/12/1992US Classes:215/383, Recess in sidewall215/900, COLLAPSIBLE WALL STRUCTURE220/666, Collapsible wall feature220/669, Contoured sidewall (e.g., curved, corrugated, ribbed, variable thickness, etc.)220/674, Embossed222/95, With wall-collapsing means222/107NonmetallicExaminersPrimary: Marcus, StephenAssistant: Castellano, S. Attorney, Agent or FirmForeign Patent References
International ClassB65D 023/00AbstractA collapsible container having substantially planar front and rear walls and interconnecting side walls that define inwardly extending V-shaped panels. A plurality of transversely extending stiffening grooves are provided in the front and rear panels to minimize outward bulging of the front and rear panels when the bottle is filled with a liquid material. A plurality of bridging members is formed in the side panels to bridge the adjacent side panels at a longitudinal fold line to minimize outward bulging of the side wall when the container is filled with liquid. To collapse the container the front and rear panels are urged together, and the side panels move inwardly about the longitudinal hinge line so that the bottle assumes a flat condition. The flattened bottle occupies considerably less space in waste disposal facilities.Field of SearchPleated or gussetedFREE-STANDING Reinforced END STRUCTURE (E.G. BOTTOM) Seamless Two opposed sidewalls and the bottom wall fold upon themselves Bottom wall collapses outwardly Nonmetallic With casing or support With wall-collapsing means COLLAPSIBLE WALL-TYPE CONTAINER Collapsible liner or wall Collapsible Collapsible wall feature Contoured sidewall (e.g., curved, corrugated, ribbed, variable thickness, etc.) Embossed Molded container | |
