Page 1 of 1

Patent Registration Lozenge Mark

Posted: Sat Jan 09, 2016 11:01 am
by piette
Hi all,
Happy New Year. I have a quick question about the British lozenge mark for registered patents (see: http://www.925-1000.com/registry.html ). Am I correct in assuming that from 1884 onwards, this was no longer stamped on items, and instead the registered patent number was stamped instead? This would mean that any item which bears this lozenge mark was made before 1884 - is this correct?
Many thanks!
P

Re: Patent Registration Lozenge Mark

Posted: Sat Jan 09, 2016 11:27 am
by dognose
Hi Piette,

Yes, and no. The lozenge mark was discontinued as from 1884, but items with that registered design may, I presume, have been made for many years after. This may be especially true where the diamond design was incorporated into a mould or die.

Trev.

Re: Patent Registration Lozenge Mark

Posted: Sat Jan 09, 2016 11:49 am
by piette
Thanks for the quick reply Trev. I am asking with reference to a plated teapot in the style of Christopher Dresser. It bears no silverplate marks, but is marked 'Designed by Dr C Dresser' and also features an 1878 lozenge mark. Trying to ascertain whether or not this is an old or modern piece!
P

Re: Patent Registration Lozenge Mark

Posted: Sat Jan 09, 2016 1:18 pm
by AG2012
Details of the registrations are held at The National Archives, Kew, Richmond, Surrey, TW9 4DU. Tel: 20 8876 3444.

Re: Patent Registration Lozenge Mark

Posted: Sat Jan 09, 2016 2:13 pm
by AG2012
Copied by Italian firm Alessi s.p.a. for their 'Dresser' range. The toast rack is still available. Have never seen the marks, though.

Re: Patent Registration Lozenge Mark

Posted: Mon Jan 11, 2016 4:15 am
by piette
Hi AG,
Yes, they were indeed copied by Alessi, however this isn't one of the Alessi reproductions. It certainly isn't an 'original' Dresser teapot (they sell for £100000+), but I suspect that this is an older reproduction.
P

Re: Patent Registration Lozenge Mark

Posted: Mon Jan 11, 2016 10:02 am
by AG2012
Hi piette,
You might find the discussion interesting.
http://www.smpub.com/ubb/Forum26/HTML/002418.html
Cannot understand such an important issue (Dr.Dresser`s reproductions) has not been documented so far.
Regards

Re: Patent Registration Lozenge Mark

Posted: Mon Jan 11, 2016 10:35 am
by dognose