US3564496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Critical roll angle warning device for vehicles
Assignee: Pfizer Inc
•
Filing: 1968-02-05
•
Granted: 1971-02-16
•
Expires: 1988-02-05
Abstract
Abstract ACTUATING SWITCH COMPRISING A CUP-SHAPED LOWER CONTACT IN WHICH A SMALL, ELECTRICALLY-CONDUCTIVE BALL ROLLS AS THE CUP IS DISPLACED FROM THE VERTICAL AND A HORIZONTAL UPPER CONTACT WHICH RETAINS THE BALL WITHIN THE CUP, THE UPPER CONTACT BEING VERTICALLY MOVABLE MANUALLY OR BY ELECTRICAL MEANS IN RESPONSE TO LOAD AND OPERATING CHARACTERISTICS OF THE VEHICLE SO AS TO VARY THE ANGLE OF ACTUATION WITH A VARYING CRITICAL ROLL ANGLE.
Inventors
- 👤 Alfred P Brooks
- 👤 Aldo P Osti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:21
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |