US4358751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 10:50
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.
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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) | 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 |