Homepage

Record

Browse this collectionThis entry describes an individual archive record or file. Click here to browse the full catalogue for this collection
Archive Reference / Library Class No.D5395/2/13/23
TitleLetters patent 228783 Little John Drum master patent (JBR)
Date1924
DescriptionThe Little John Drum Patents were never seriously challenged until 1945 when Stevensons of Manchester produced evidence to the effect that the Major Patent 228783 was invalid at the time of grant. JBR consulted Mr Whitehead, KC, and Mr Frank Watson. Mr Whitehead's advice was i) in his view the Patents were not valid ii) the strongest plank in the Robinson platform was the fact that for 11 years there had been no opposition whatsoever and an astronomical number had been sold iii) in his view, however, it would be very difficult for Stevensons now to oppose the Patent iv) this proved to be the case and the Patent was respected until its expiry date (Note by EBR/EAG 21.8.67)
Extent2 items
LevelItem
RepositoryDerbyshire Record Office
Archive CreatorRobinson and Sons Ltd of Chesterfield, textile and packaging manufacturers
Add to My Items
    Local Studies Periodicals

    Local Studies Periodicals

    Useful Links

    See more Collection highlights

    Bryan Donkin Company Ltd of Chesterfield, engineering firm
    Bryan Donkin Company Ltd of Chesterfield, engineering firm
    Local Studies Periodicals
    Local Studies Periodicals
    National Coal Board
    National Coal Board
    Sir John Franklin (1786-1847), naval officer and arctic explorer
    Sir John Franklin (1786-1847), naval officer and arctic explorer
    Collection Highlights