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.)
Expired
Application number
Inventor
Heinrich Drehschmidt
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.)
Individual
Original Assignee
Individual
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
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB190813204ApublicationCriticalpatent/GB190813204A/en
13,204. Drehschmidt, H. Nov. 8, 1907, [date applied for under Section 91 of Patents &c. Act, 1907]. Incandescent gas lamps. - Inverted unburnt mantles are burnt off while on the lighting-burner, the mouth of which is provided with outwardlyinclined perforations. The burner mouth may comprise stamped-out plates or superimposed sieves.
GB190813204D1907-11-081908-06-20Improvements relating to Burning Off Gas Mantles.
ExpiredGB190813204A
(en)