US3972601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peripheral vision non-distorting rear view mirror
Assignee: Individual
•
Filing: 1974-08-19
•
Granted: 1976-08-03
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Expires: 1994-08-19
Abstract
Abstract An optical configuration suitable for use as a rear view mirror for motor vehicles, the configuration including a plurality of distortion-free plane reflecting mirror surfaces oriented to provide a complete peripheral view without distortion.
Inventors
- 👤 William Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:50
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/08; B60R1/081; B60R1/082; G; G02; G02B; G02B5/00; G02B5/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
A mirror having at least first and second opposite sides for providing complete peripheral non-distorted vision to said first side, comprising: first and second plane mirror surfaces on said first side having at least first and second opposite edges, the first edges of said first and second plane mirror surfaces adjoining each other at a center line having first and second ends along said first edges, said first and second mirror surfaces sloping from said center line toward said second side at an angle of 2° to 3° ; a third plane mirror surface on said first side adjoining said first mirror surface at the second edge thereof and sloping toward said second side at an angle of 3° to 4°; and a fourth plane mirror surface on said first side adjoining said second mirror surface at the second edge thereof and sloping toward said second side at an angle of 3° to 4° .
Claim 2
Dependent Claim
155 words
A mirror having at least first and second opposite sides for providing complete peripheral non-distorted vision to said first side, comprising: first and second plane mirror surfaces on said first side having at least first and second opposite edges, the first edges of said first and second plane mirror surfaces adjoining each other at a center line having first and second ends along said first edges, said first and second mirror surfaces sloping from said center line toward said second side at an angle of 2° to 3° ; a third plane mirror surface on said first side adjoining said first mirror surface at the second edge thereof and sloping toward said second side at an angle of 3° to 4°; and a fourth plane mirror surface on said first side adjoining said second mirror surface at the second edge thereof and sloping toward said second side at an angle of 3° to 4° .
Claim 3
Dependent Claim
44 words
The mirror of claim 1 further comprising: a fifth plane mirror surface on said first side adjoining said first, second, third and fourth mirror surfaces at third edges thereof and intersecting the first end of the center line and sloping toward said second side.
Claim 4
Dependent Claim
44 words
The mirror of claim 2 further comprising: a sixth plane mirror surface on said first side adjoining said first, second, third and fourth mirror surfaces at fourth edges thereof and intersecting the second end of the center line and sloping toward said second side.
Claim 5
Dependent Claim
53 words
The mirror of claim 2 wherein: said first and second mirror surfaces are approximately 1.5 inches wide; said third and fourth mirror surfaces are approximately 0.5 inches wide, and said fifth mirror surface is approximately 1.0 inches wide measured from the first end point of said center line along the direction of slope.
Claim 6
Dependent Claim
39 words
The mirror of claim 3 wherein: said fifth mirror surface slopes toward said second side at an angle of 2.0° to 3°. and said sixth mirror surface slopes toward said second side at an angle of 2.0° to 3.0°.
Claim 7
Dependent Claim
156 words
In combination: a mirror having first and second, opposite sides and having at least five plane mirror surfaces on said first side inclined one to the other; holding means for receiving said mirror; mounting means for mounting said holding means and said mirror to provide vision to said first side; the first and second mirror surfaces adjoining each other to form a first common edge having first and second ends; the third mirror surface adjoining said first mirror surface along a second common edge having first and second ends, said second common edge being substantially parallel to said first common edge; the fourth mirror surface adjoining said second mirror surface along a third common edge having first and second ends, said third common edge being substantially parallel to said first common edge; and the fifth mirror surface adjoining said first, second third and fourth mirror surfaces at the first ends of the respective common edges thereof.
Claim 8
Dependent Claim
156 words
In combination: a mirror having first and second, opposite sides and having at least five plane mirror surfaces on said first side inclined one to the other; holding means for receiving said mirror; mounting means for mounting said holding means and said mirror to provide vision to said first side; the first and second mirror surfaces adjoining each other to form a first common edge having first and second ends; the third mirror surface adjoining said first mirror surface along a second common edge having first and second ends, said second common edge being substantially parallel to said first common edge; the fourth mirror surface adjoining said second mirror surface along a third common edge having first and second ends, said third common edge being substantially parallel to said first common edge; and the fifth mirror surface adjoining said first, second third and fourth mirror surfaces at the first ends of the respective common edges thereof.
Claim 9
Dependent Claim
31 words
The combination recited in claim 6 further comprising a sixth mirror surface adjoining said first, second, third and fourth mirror surfaces at the second ends of the respective common edges thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |