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US4358751A
Expired / Lapsed
US
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Automatically cancelling turn signal apparatus
Assignee: SIGNAL SENTRY IND Inc
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Filing: 1978-11-14
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Granted: 1982-11-09
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Expires: 1998-11-14
Abstract
Abstract An automatically cancelling turn signal apparatus for a powered vehicle including left turn and right turn indicators. A switch selectively activates the indicators. A mechanism inactivates the indicators responsive to a predetermined increase in vehicle velocity over any base vehicle velocity attained after activating the switch.
Inventors
- 👤 Robert D. Roudebush, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:49
CPC Classifications
B; B62; B62J; B62J6/00; B62J6/01; B62J6/015; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/34; B60Q1/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
52 words
An automatically cancelling turn signal apparatus for a powered vehicle comprising: left turn and right turn indicator means; switch means for selectively activating said indicator means; and means for inactivating said indicator means responsive to a predetermined increase in vehicle velocity over any base vehicle velocity attained after activating said switch means.
Claim 2
Dependent Claim
52 words
An automatically cancelling turn signal apparatus for a powered vehicle comprising: left turn and right turn indicator means; switch means for selectively activating said indicator means; and means for inactivating said indicator means responsive to a predetermined increase in vehicle velocity over any base vehicle velocity attained after activating said switch means.
Claim 3
Dependent Claim
30 words
The automatically cancelling turn signal apparatus of claim 1 wherein said inactivating means is responsive to a positive change in vehicle velocity of between about 5 mph and 30 mph.
Claim 4
Dependent Claim
66 words
An automatically cancelling turn signal apparatus for a powered vehicle having a component indicative of vehicle velocity, said apparatus comprising: left turn and right turn indicator means; switch means for selectively activating said indicator means; and means associated with said vehicle component for inactivating said indicator means responsive to a predetermined increase in vehicle velocity over any base vehicle velocity attained after activating said switch means.
Claim 5
Dependent Claim
66 words
An automatically cancelling turn signal apparatus for a powered vehicle having a component indicative of vehicle velocity, said apparatus comprising: left turn and right turn indicator means; switch means for selectively activating said indicator means; and means associated with said vehicle component for inactivating said indicator means responsive to a predetermined increase in vehicle velocity over any base vehicle velocity attained after activating said switch means.
Claim 6
Dependent Claim
16 words
The automatically cancelling turn signal device of claim 3 wherein said vehicle component is a speedometer.
Claim 7
Dependent Claim
16 words
The automatically cancelling turn signal device of claim 3 wherein said vehicle component is a transmission.
Claim 8
Dependent Claim
26 words
The automatically cancelling turn signal apparatus of claim 3 wherein said vehicle component is a wheel or a part of the vehicle rotating with said wheel.
Claim 9
Dependent Claim
33 words
The automatically cancelling turn signal apparatus of claim 3 wherein said inactivating means is responsive to a predetermined increase in vehicle velocity over the lowest vehicle velocity attained after activating said switch means.
Claim 10
Dependent Claim
77 words
An automatically cancelling turn signal apparatus for a powered vehicle comprising: left turn and right turn indicator means; switch means for selectively activating said indicator means; means for monitoring vehicle velocity; means associated with said monitoring means for storing a velocity of the vehicle; and means for inactivating said indicator means (a) after activating said switch means and (b) responsive to a predetermined increase in vehicle velocity over any base vehicle velocity monitored by said monitoring means.
Claim 11
Dependent Claim
77 words
An automatically cancelling turn signal apparatus for a powered vehicle comprising: left turn and right turn indicator means; switch means for selectively activating said indicator means; means for monitoring vehicle velocity; means associated with said monitoring means for storing a velocity of the vehicle; and means for inactivating said indicator means (a) after activating said switch means and (b) responsive to a predetermined increase in vehicle velocity over any base vehicle velocity monitored by said monitoring means.
References Cited (Backward Citations)
US1998639A
Cited
US2704360A
Cited
US2872660A
Cited
US3110011A
Cited
US3217112A
Cited
US3316533A
Cited
US3555506A
Cited
US3555507A
Cited
US3484743A
Cited
US4125827A
Cited
US4058797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-08 | 1986-05-10 | 1986-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-08 | 1990-05-10 | 1990-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-08 | 1994-05-10 | 1994-11-09 | $7700.00 | Window Closed / Lapsed |