Frame member for constructing a duct
United States Patent D339641

Leufstedt, Stefan (Carl XII gatan 11a, S-271 44 Ystad, SE)
Jaderberg, Carl-eric (Larmgatan 8, S-393 23 Kalmar, SE)
Application Number:
Publication Date:
Filing Date:
Primary Class:
Field of Search:
D25/119-125, D13/155, 49/463-466, 49/501, 49/503, 49/504, 52/658, 52/637
View Patent Images:
US Patent References:
4598516Ceiling finish joint for dry wall partitions and method of making sameJuly, 1986Groshong52/241
4553363Outside wallboard corner construction and edging member for said cornersNovember, 1985Weinar52/732
4028856Cover wall constructionJune, 1977Dalbec52/242
3854248DUCT ACCESS DOORDecember, 1974Dayus49/504
3286405Access doorNovember, 1966Schembri49/463
2667241Prefabricated building structureJanuary, 1954Shannon52/290
2576296Joint construction for panelsNovember, 1951Green52/471
1919716Metal partitionJuly, 1933Freeman52/287

Foreign References:
DE826866January, 1952D25/119
Primary Examiner:
Word, Hugo A.
Assistant Examiner:
Clark, Doris
Attorney, Agent or Firm:
Merchant & Gould Smith, Edell, Welter & Schmidt
1. The ornamental design for a frame member for constructing a duct, as shownand described.


The FIGURE is a perspective view of a frame member for constructing a duct showing our new design.