Doorknob assembly
United States Patent D691454

Weathersby, Steven T. (Lake Forest, CA, US)
Kiechel, John (Oakland, CA, US)
Murphy, Sean (San Francisco, CA, US)
Sheppard, Nasahn Adam (Mill Valley, CA, US)
Sloss, James (Cambridge, MA, US)
Ward, Andy (San Francisco, CA, US)
Application Number:
Publication Date:
Filing Date:
Hampton Products International Corporation (Foothill Ranch, CA, US)
Primary Class:
International Classes:
(IPC1-7): 0806
Field of Search:
D8/300, D8/301, D8/310, D8/343, D8/350, D8/DIG.2, 292/347, 292/337, 292/357, 16/110.1, 16/412, 16/414, 16/417, 16/430, 16/433, 16/441, 16/442, 16/DIG.30
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US Patent References:
D592484KnobMay, 2009RiceretoD8/310
D565385Cabinet pullApril, 2008JouD8/307
D542115Door knobMay, 2007Hanna et al.D8/310
D493686KnobAugust, 2004FieldsD8/310
D454049Combined door knob and roseMarch, 2002LaPlume et al.D8/301
D427291Shower controlJune, 2000Milrud et al.D23/254
D225393N/ADecember, 1972GiandonmenicoD8/310
3149871Hand hold face opening and spindle device for insertion or removal of button-operated mechanismSeptember, 1964Russell et al.292/352
3125877N/AMarch, 1964Fryer70/224
3096115Knob constructionJuly, 1963Patriquin et al.292/347
3017213Mounting plate and roseJanuary, 1962Kendrick292/357
3012808Door knob assemblyDecember, 1961Zion292/347
2993720Resilient knob face retainerJuly, 1961Russell292/347
2976073Knob assemblyMarch, 1961Russell et al.292/352
2967728Door handle constructionJanuary, 1961Falk292/347
2812967Door knobNovember, 1957Falk292/347
D180818N/AAugust, 1957ClaytonD8/310
2797950Doorknob assemblyJuly, 1957Michael292/347
D179679N/AFebruary, 1957EllisD8/310
D179458N/ADecember, 1956OhnoD8/310
D179220N/ANovember, 1956RussellD8/310
D176713N/AJanuary, 1956EllisD8/310
2688181Doorknob blankSeptember, 1954Livermont et al.428/583
2517803DoorknobAugust, 1950Seaholm292/347
2094982DoorknobOctober, 1937Gerard292/347
2082351LockJune, 1937Moore70/224
1996357Knob structure for locksApril, 1935Voight292/347
1799253Door-knob assemblyApril, 1931Rogers292/350
1653513Escutcheon-plate fastenerDecember, 1927Schlage292/357
0337093N/AMarch, 1886Thistle292/347

Primary Examiner:
Greene, Paula
Attorney, Agent or Firm:
Klein, O'Neill & Singh, LLP

1. The ornamental design for a doorknob assembly, as shown and described.


FIG. 1 is a perspective view, taken from the front, top, and right side, of a doorknob assembly, in accordance with my new design;

FIG. 2 is a front elevational view of the doorknob assembly shown in FIG. 1;

FIG. 3 is a left side elevational view of the doorknob assembly shown in FIG. 1:

FIG. 4 is a right side elevational view of the doorknob assembly shown in FIG. 1;

FIG. 5 is a top plan view of the doorknob assembly shown in FIG. 1, the bottom plan view being identical thereto; and,

FIG. 6 is a rear elevational view of the doorknob assembly shown in FIG. 1.

The broken lines illustrate environmental structure which forms no part of the claimed design.