Implements Patents (Class 42/90)
- Vent, vented, or ventilated rib type (Class 42/112)
- Target spot or dot superimposed on sight (Class 42/113)
- Focused beam (e.g., laser on target, etc.) (Class 42/114)
- Periscope type or using a mirror (Class 42/118)
- Telescopic type (Class 42/119)
- With a reticle or graticule (e.g., crosshairs, etc.) (Class 42/130)
- Illuminated, including fiber optics (Class 42/132)
- Having variable size aperture, slot, notch, or cone-shaped (Class 42/133)
- Through the bore type (e.g., sighting in, or straightness testing device, etc.) (Class 42/134)
- Correctable (Class 42/135)
- Dual flip-, superimposed-, or dial-type (Class 42/140)
- Multisight, for moving targets (e.g., shotgun type, etc.) (Class 42/141)
- Nonadjustable rangefinder, type (Class 42/142)
- Hood, guard, shade, or cover (Class 42/143)
- Using contrasting material or color (e.g., bead, etc.) (Class 42/144)
- Target illuminated (e.g., via flashlight, etc.) (Class 42/146)
- Yieldable (Class 42/147)
- Stowed, relocated to nonuse position, or quickly detachable (Class 42/148)