Objections Cited by the United States Patent and Trademark Office (USPTO)
Common Objections to Patent Drawings:
Color: Drawing color must be black, using black ink unless permission is granted for color patent drawings. 37 CFR 1.84(a)
Photographs: Permission must be granted to submit photographs as patent drawings. 37 CFR 1.84(b)
Paper: Not flexible or strong, not white and durable or too thin. 37 CFR 1.84(f)
Paper: Contains erasures, alterations, overwritings, interlineations, folds, copy machine marks. 37 CFR 1.84(f)
Paper: Drawings must be letter size paper (8 1/2 x 11 inches or DIN A4). 37 CFR 1.84(f)
Paper: Drawings contain sheets of different paper sizes. 37 CFR 1.84(f)
Margins: Drawing margins not acceptable. 37 CFR 1.84(g)
Views: Drawing Views connected by projection lines or lead lines. 37 CFR 1.84(h)
Views: Brackets needed to show drawing figure as one entity. 37 CFR 1.84(h)
Views: Drawing views not labeled separately or properly. 37 CFR 1.84(h)
Views: Enlarged drawing view not labeled separately or properly 37 CFR 1.84(h)
Views: Hatching not indicated for sectional portions of a drawing object. 37 CFR 1.84(h)
Views: Sectional designations on drawings should noted with Arabic or Roman numbers. 37 CFR 1.84(h)
Views: Words do not appear on a horizontal, left-to-right fashion when drawing sheet is either upright or turned,
so that the top becomes the right side, except for graphs. 37 CFR 1.84(i)
Views: Drawing views not on the same plane on sheet. 37 CFR 1.84(i)
Scale: Drawing scale not large enough to show mechanism with crowding when drawing is reduced in size to two-thirds
in reproduction. 37 CFR 1.84(i)
Character of Lines, Numbers and Letters: Lines, numbers and letters on drawing not
uniformly thick and well defined. 37 CFR 1.84(l)
Character of Lines, Numbers and Letters: Lines, numbers and letters not clean, durable and black. 37 CFR 1.84(l)
Shading: Solid black shading on drawing not permitted. 37 CFR 1.84(m)
Shading: Solid black areas pale. 37 CFR 1.84(m)
Shading: Shade lines pale, rough, and blurred. 37 CFR 1.84(m)
Numbers, Letters, and Reference Characters: Numbers and reference characters on drawing not plain and legible. 37 CFR 1.84(p)
Numbers, Letters, and Reference Characters: Numbers, letters, and reference characters on drawing must be 0.32cm (1/8 inch) in height. 37 CFR 1.84(p)
Numbers, Letters, and Reference Characters: Numbers and reference characters on drawing not oriented in same direction as the view. 37 CFR 1.84(p)
Numbers, Letters, and Reference Characters: Figure legends on drawing are poor. 37 CFR 1.84(p)
Numbers, Letters, and Reference Characters: English alphabet not used on drawings. 37 CFR 1.84(p)
Lead Lines: Lead lines on drawing cross each other. 37 CFR 1.84(q)
Lead Lines: Lead lines missing from drawing. 37 CFR 1.84(q)
Numbering of Sheets of Drawings: Drawing sheets not numbered consecutively, and in Arabic numerals beginning with number one. 37 CFR 1.84(t)
Numbering of Views: Drawing views not numbered consecutively, and in Arabic numerals beginning with number one. 37 CFR 1.84(u)
Corrections: Corrections not made from PTO-948. 37 CFR 1.84(w)
Design Drawings: Appropriate surface shading not shown on drawings. 37 CFR 1.152(w)
Design Drawings: Solid black shading not used for color contrast on drawings. 37 CFR 1.152(w)
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