Patent US4002873A successfully refreshed from Google Patents.
US4002873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated pushbutton switch
Assignee: Oak Industries Inc
•
Filing: 1975-02-06
•
Granted: 1977-01-11
•
Expires: 1995-02-06
Abstract
Abstract A pushbutton switch has a button telescopically mounted on a switch base and a contact with a plurality of outwardly extending arms positioned between the button and the base. One group of arms is disposed for contact with the terminals within the base and another group of arms is positioned to receive the actuating force from the button. Illuminating means are positioned within the base and are disposed to direct light through an opening in the contact toward a light transmissive portion of the button.
Inventors
- 👤 Raymond F. Lewandowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:30
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A pushbutton switch including a base and a button telescopically mounted on the base, at least a portion of said button being light transmissive, spaced terminals extending outwardly from the base and having portions positioned within the base, spring means normally biasing the button away from the base, a contact having a plurality of outwardly extending substantially co-planar arms positioned between the base and button, certain of said arms being disposed for contact with said terminal portions, the remaining arms being disposed for contact by said button, means on the button for contacting said remaining arms to move said certain arms into contact with said terminal portions, said substantially co-planar arms being joined together in a central area, an opening generally in the center of said central area, a light emitting diode positioned within said base and on the side of said contact away from said button, said light emitting diode being positioned in direct alignment with said contact opening and said light transmissive button portion.
Claim 2
Dependent Claim
166 words
A pushbutton switch including a base and a button telescopically mounted on the base, at least a portion of said button being light transmissive, spaced terminals extending outwardly from the base and having portions positioned within the base, spring means normally biasing the button away from the base, a contact having a plurality of outwardly extending substantially co-planar arms positioned between the base and button, certain of said arms being disposed for contact with said terminal portions, the remaining arms being disposed for contact by said button, means on the button for contacting said remaining arms to move said certain arms into contact with said terminal portions, said substantially co-planar arms being joined together in a central area, an opening generally in the center of said central area, a light emitting diode positioned within said base and on the side of said contact away from said button, said light emitting diode being positioned in direct alignment with said contact opening and said light transmissive button portion.
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) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |