US Patent Class 353
OPTICS: IMAGE PROJECTORS-- Main Headings



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Current as of: June, 1999
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CLASS NOTES
1  DF  KALEIDOSCOPIC {1}
3  DF  HELIOSTATS
4  DF  ASCENDING HEATED AIR CHANGES PICTURES
5  DF  MAPPING OR AERIAL PHOTOGRAPH RECTIFYING {1}
7  DF  STEREOSCOPIC {2}
10  DF  RELIEF ILLUSION
11  DF  TARGET, MAP OR NAVIGATION PROJECTION {1}
13  DF  WITH OR FOR VEHICLE {1}
15  DF  WITH SOUND ACCOMPANIMENT {2}
20  DF  POLARIZER OR INTERFERENCE FILTER
21  DF  EDITING OR AUXILIARY VIEWING
22  DF  TRANSPARENT PLATE {1}
25  DF  SELECTIVE DATA RETRIEVAL {2}
28  DF  PROJECTED IMAGE COMBINED WITH REAL OBJECT
29  DF  ADDITIONAL ILLUMINATION OF OR NEAR PROJECTED IMAGE
30  DF  COMPOSITE PROJECTED IMAGE {5}
38  DF  UNITARY PLURAL REFRACTING SURFACES
39  DF  MICROPROJECTOR
40  DF  SCALE OR SCALE INDICATOR PROJECTOR {1}
42  DF  POINTER
43  DF  GUN, FLASHLIGHT OR BATTERY OPERATED TYPE
44  DF  SIMULTANEOUS PROJECTION AND MANUAL DELINEATION {1}
46  DF  IMAGE MOVES ON SCREEN {3}
52  DF  TEMPERATURE CONTROL {5}
62  DF  STENCIL OR PERFORATED PLATE PROJECTOR (E.G., SKY OR CLOUD PROJECTOR)
63  DF  EPIDIASCOPE (I.E., SELECTIVE OPAQUE AND TRANSPARENCY PROJECTOR) {1}
65  DF  EPISCOPE (I.E., OPAQUE PROJECTOR) {1}
68  DF  SELECTIVE SLIDE AND FILM STRIP PROJECTOR
69  DF  DISTORTION COMPENSATION {1}
71  DF  SELECTIVE PROJECTION ON DISTANT OR CABINET SCREEN
72  DF  PROJECTOR OR SCREEN REMOVABLE FROM COMMON HOUSING {1}
74  DF  CABINET ENCLOSES PROJECTOR AND ONE SIDE OF SCREEN {3}
79  DF  STRUCTURALLY RELATED PROJECTOR AND SCREEN {1}
81  DF  PRISM IN LIGHT PATH
82  DF  PLURAL PROJECTION PATHS WITH SINGLE LIGHT SOURCE {1}
84  DF  COLOR FILTER
85  DF  LAMP CONTROL {2}
88  DF  SHUTTER {4}
94  DF  PLURAL
95  DF  FILM GATE {1}
97  DF  LIGHT SHIELD, MASK, HOOD, OR DIAPHRAGM
98  DF  REFLECTOR {1}
100  DF  LENS SUPPORT {1}
102  DF  PARTICULAR CONDENSER
103  DF  SLIDE TRANSFER MECHANISM {7}
119  DF  HOUSING
120  DF  PICTURE CARRIER
121  DF  METHODS
122  DF  MISCELLANEOUS
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DIGESTS
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DIG 1  DF  Slides stacked with surface to surface contact
DIG 2  DF  Film strip
DIG 3  DF  Transparent
DIG 4  DF  Opaque
DIG 5  DF  Transparency holder accessories
DIG 6  DF  Head accessories