Title:
Well screen
United States Patent 3221819


Inventors:
Dickinson, Richard E.
Dickinson, Roger W.
Application Number:
US36421864A
Publication Date:
12/07/1965
Filing Date:
05/01/1964
Assignee:
Dickinson, Richard E.
Dickinson, Roger W.
Primary Class:
Other Classes:
210/457, 210/460, 210/497.1
International Classes:
E21B43/08
View Patent Images:
US Patent References:
3127295N/A1964-03-31
3104224Filters for liquids1963-09-17
2819800Filtering apparatus and filter unit therefor1958-01-14
2614058Methods of forming reinforced hollow plastic articles1952-10-14
2084433Filter, strainer, and the like1937-06-22
2081190Well screen1937-05-25
2046459Screen for oil wells1936-07-07
0787913N/A1905-04-25
Foreign References:
GB832638A1960-04-13