Patent US3820877A successfully refreshed from Google Patents.
US3820877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendable and retractable motor vehicle mirror arms
Assignee: Individual
•
Filing: 1973-03-19
•
Granted: 1974-06-28
•
Expires: 1993-03-19
Abstract
Abstract Motor vehicle mirror arms can be extended or retracted from the dashboard of the vehicle to a point beyond the width of the motor vehicle to enhance the visibility to the rear. The mirror arms are moved by hydraulic, air, vacuum, or electric means and can be positioned at any desired point from fully retracted to fully extended.
Inventors
- 👤 J Moyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:38
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/06; B60R1/078; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20432
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A combined motor vehicle and an extensible and retractable rear view mirror system therefore comprising a pair of cylinders mounted on said motor vehicle in axially aligned generally horizontal relation, an L-shaped piston rod extending outwardly from each of said cylinders and carrying a mirror on the outer end thereof, a piston in each of said cylinders connected to said L-shaped piston rod for moving said L-shaped rod axially on the application of pressure to said pistons, and hand actuated means on said motor vehicle for controlling the movement of said pistons in said cylinders to control the extended and retracted position of said mirrors with respect to said vehicle.
Claim 2
Dependent Claim
110 words
A combined motor vehicle and an extensible and retractable rear view mirror system therefore comprising a pair of cylinders mounted on said motor vehicle in axially aligned generally horizontal relation, an L-shaped piston rod extending outwardly from each of said cylinders and carrying a mirror on the outer end thereof, a piston in each of said cylinders connected to said L-shaped piston rod for moving said L-shaped rod axially on the application of pressure to said pistons, and hand actuated means on said motor vehicle for controlling the movement of said pistons in said cylinders to control the extended and retracted position of said mirrors with respect to said vehicle.
Claim 3
Dependent Claim
41 words
A device as claimed in claim 1 wherein hydraulic means is provided for moving said pistons and said hand controlled means for controlling the position of said pistons comprises hydraulic lines extending to said pistons and valves mounted in said line.
Claim 4
Dependent Claim
13 words
A device as claimed in claim 1 wherein said pistons are air actuated.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |