Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ST Regis Paper Co
Original Assignee
ST Regis Paper Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US293005Aexternal-prioritypatent/US3221789A/en
Priority claimed from US376511Aexternal-prioritypatent/US3279330A/en
Application filed by ST Regis Paper CofiledCriticalST Regis Paper Co
Publication of ES301692A1publicationCriticalpatent/ES301692A1/es
B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
B65D31/14—Valve bags, i.e. with valves for filling
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Bag Frames
(AREA)
Making Paper Articles
(AREA)
ES0301692A1963-07-051964-07-04Un procedimiento para la produccion de una bolsa con valvula totalmente de plastico.
ExpiredES301692A1
(es)