U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Patent No. 5377411

Hair Cutting Appliance

A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.

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Examiner: Gordon, Clarence R.


Primary examiner statistics: 204 patents; average approval time: 666 days
Assistant examiner statistics: 1 patents; average approval time: 977 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
4137890 Toroid sweep engine
4134258 Fuel control system
4134259 Fuel manifold prefill
4129250 Relative humidity control
4129101 Internal combustion engine
4127096 Internal combustion engine
4126269 Ventilated enclosure
4117670 Dual slope temperature differential shutdown control for gas turb...
4116000 Engine control system
4115998 Combustion monitor
4114806 Thermostatically actuated regulator for a 4-lead air conditioning...
4112675 Apparatus and method for starting a large gas turbine having a ca...
4106444 Individual cylinder head
4106443 Rotary internal combustion engine
4106285 Method for regulating the driving power of an expansion engine an...
4104873 Fuel delivery system including heat exchanger means
4103560 Day-night mirror control apparatus
4102599 Turbine-generator assembly, installation and housing
4100911 Rotary piston internal combustion engine
4099425 Method of making push-pull cable conduit and product
4096828 Rotary piston internal combustion engine
4095420 Augmentor outer segment lockout and fan upmatch
4094209 Lever knob
4091644 Turbine pump
4090455 Boiler start-up air heater
4089307 Throttle valve operating mechanism
4087961 Fuel control system for gas turbine engine operated on gaseous fu...
4086824 Split link actuator brake
4086880 Rotary prime mover and compressor and methods of operation thereo...
4085579 Method and apparatus for improving exhaust gases of a gas turbine...
4084555 Radial engine
4084549 Rotary piston engine exhaust gas recycling means
4080784 Gas turbine engine power plant with a coal burning fluidized bed
4078529 Rotary engine
4078526 Rotary piston engine
4077365 Expansible chamber apparatus
4077204 Control system for a gas turbine engine
4077277 Cable assembly
4077203 Emergency metering valve and geometry actuator control device
4077371 Fuel saving system for automobiles

Patents as Assistant Examiner

Patent No. Patent Title:
7257595 Transactional file system
 
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