Patent US-1918-1629978

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  • Tech class: CPC B64C35/00: Flying-boats; Seaplanes
  • Inventor location: Lawrence B. Sperry of Massapequa, NY; executor: BofA of NYC, and Winifred Allen Sperry of Hempstead, NY. Lawrence was deceased. Assigned to WA Sperry.
  • Note that this patent was administratively delayed for an unusually long time.


Year filed 1918
Year granted 1927
Office US
Patent number 1629978
Inventors Lawrence B. Sperry
Inventor country US
Applicant person Winifred Allen Sperry
Applicant firm Bank of America
Applicant type INDIV
Applicant is inventor? 0
Original title Flying boat
English title Flying boat
Tech fields hydroaeroplane
Filing date 1918-07-26
Full specification filed date
Application number 24683218
Grant date 1927-05-24
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number 246832
Patent agent Herbert H. Thompson
Assigned to Winifred Allen Sperry
National tech categories
IPCs IPC B64C35/00
CPCs CPC B64C35/00
Family year 1918
First filing? 1
Cites these patents
Citations from after 1930 0
Application ID 48980242
INPADOC family ID 44561263
Number of text pages 3
Number of diagram pages 1
Number of figures 5
Number of claims 6