US4497541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rear viewer for automobile
Assignee: Individual
•
Filing: 1982-03-08
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Granted: 1985-02-05
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Expires: 2002-03-08
Abstract
Abstract A rear viewer for automobile is disclosed which enables an automobile driver to see and ascertain condition at road immediate behind and below rear end portion of his automobile by an uninverted state of image whereby the automobile driver can instantly understand the condition of the road immediate behind and below the rear end portion of the automobile to safely and correctly drive the automobile backwardly in all weather conditions.
Inventors
- 👤 Makoto Okamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:03
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/10; B60R1/002; G; G02; G02B; G02B5/00; G02B5/08; G02B7/00; G02B7/18; G02B7/182; G02B7/1822; G02B7/1824
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
193 words
A rear viewer for automobile comprising, a holder frame box; a sealed type box-like retaining chamber formed in the holder frame box; a front side opening provided at front side of the holder frame box; an under side opening provided at an under side of the holder frame box; a thin plate-like Fresnel concave lens mounted on said under side opening; the front side of the holder frame box being attachable onto the outer surface of an automobile rear window glass; a first reflex mirror adjustably retained in said chamber for showing the road condition in an area from approximately immediately below a rear end portion of the automobile to a desired area behind the rear end portion of the automobile through said thin plate-like Fresnel concave lens, and a second reflex mirror adjustably retained in said chamber and arranged oppositely to the first reflex mirror for enabling the automobile driver to see the condition at the road reflected by the first reflex mirror, whereby the automobile driver can see the road condition transmitted by said plate-like Fresnel concave lens, the first reflex mirror and the second reflex mirrors as an uninverted image.
Claim 2
Dependent Claim
193 words
A rear viewer for automobile comprising, a holder frame box; a sealed type box-like retaining chamber formed in the holder frame box; a front side opening provided at front side of the holder frame box; an under side opening provided at an under side of the holder frame box; a thin plate-like Fresnel concave lens mounted on said under side opening; the front side of the holder frame box being attachable onto the outer surface of an automobile rear window glass; a first reflex mirror adjustably retained in said chamber for showing the road condition in an area from approximately immediately below a rear end portion of the automobile to a desired area behind the rear end portion of the automobile through said thin plate-like Fresnel concave lens, and a second reflex mirror adjustably retained in said chamber and arranged oppositely to the first reflex mirror for enabling the automobile driver to see the condition at the road reflected by the first reflex mirror, whereby the automobile driver can see the road condition transmitted by said plate-like Fresnel concave lens, the first reflex mirror and the second reflex mirrors as an uninverted image.
Claim 3
Dependent Claim
34 words
A rear viewer for automobile as defined in claim 1, wherein either one of the opposing two reflex mirrors is adjustably rotatable around a horizontal axis extending in lateral width direction of the automobile.
Claim 4
Dependent Claim
41 words
A rear viewer for automobile as defined in claim 1, wherein both of the opposing two reflex mirrors are adjustably rotatable independently with respect to each other around a horizontal axis extending in lateral width direction of said holder frame box.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |