US3304368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise level indicator for school bus
Assignee: Individual
•
Filing: 1963-05-10
•
Granted: 1967-02-14
•
Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Ford
- 👤 Richard L Rounder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:19
CPC Classifications
G; G01; G01H; G01H3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A PASSENGER BUS HAVING A DRIVER''S SEAT AND A PLURALITY OF PASSENGER SEATS ALL FACING FORWARDLY, A NOISE LEVEL INDICATOR SYSTEM COMPRISING A LIGHT MOUNTED IN THE BUS AT THE FORWARD END THEREOF AND SUFFICIENTLY HIGH TO BE VISIBLE TO ALL PERSONS SITTING IN SAID SEATS, A MICROPHONE MOUNTED IN SAID BUS ADJACENT THE TOP OF SAID DRIVER''S SEAT WHEREBY SAID MOCROPHONE IS ADJACENT THE EAR OF A PERSON SITTING IN SAID DRIVER''S SEAT, AN AMPLIFIER COUPLED TO SAID MICROPHONE, AND MEANS FOR ADJUSTING THE AMPLIFICATION OF SAID AMPLIFIER TO CONTROL THE LEVEL OF SOUND INTENSITY WHICH CAUSES ENERGIZATION OF SAID LIGHT, SAID LIGHT BEING COUPLED TO SAID AMPLIFIER.
Claim 2
Dependent Claim
110 words
IN A PASSENGER BUS HAVING A DRIVER''S SEAT AND A PLURALITY OF PASSENGER SEATS ALL FACING FORWARDLY, A NOISE LEVEL INDICATOR SYSTEM COMPRISING A LIGHT MOUNTED IN THE BUS AT THE FORWARD END THEREOF AND SUFFICIENTLY HIGH TO BE VISIBLE TO ALL PERSONS SITTING IN SAID SEATS, A MICROPHONE MOUNTED IN SAID BUS ADJACENT THE TOP OF SAID DRIVER''S SEAT WHEREBY SAID MOCROPHONE IS ADJACENT THE EAR OF A PERSON SITTING IN SAID DRIVER''S SEAT, AN AMPLIFIER COUPLED TO SAID MICROPHONE, AND MEANS FOR ADJUSTING THE AMPLIFICATION OF SAID AMPLIFIER TO CONTROL THE LEVEL OF SOUND INTENSITY WHICH CAUSES ENERGIZATION OF SAID LIGHT, SAID LIGHT BEING COUPLED TO SAID AMPLIFIER.
References Cited (Backward Citations)
US2572221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |