Application Type
National Patents
Application SubType
National Patent
(10) Registration Number and Date
1940/000033 1942.10.01
Status
Invalidated
(180) Expiration Date
1960.10.08
(20) Filing Number and Date
BW P/1940/000033 1940.10.08
(40) Publication Number and Date
(86) PCT Filing Number and Date
(87) PCT Publication Number and Date
(85) National Entry Date
(30) Priority Details
(51) IPC Classes
(72) Inventor
(74) Representative Name
(EN) ADAMS & ADAMS : Masada Building
(54) Title
(EN) AN IMPROVED FORM FOR ARCH CONCRETE CONSTRUCTIONS
(57) Abstract
(58) Citations
Document Type Date Action
Event NameDateStatus
Filing1940.10.08Filed
Registration1942.10.01Registered
Invalidation1960.10.08Invalidated