US3332076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reading timer
Assignee: BURSON ELECTRONICS Inc
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Filing: 1964-12-18
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Granted: 1967-07-18
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Expires: 1984-12-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Benard Burson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:09
CPC Classifications
G; G09; G09B; G09B17/00; G09B17/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
A READING TIMER COMPRISING A TRANSISTOR BLOCKING OSCILLATOR INCLUDING A FEEDBACK TRANSFORMER AND A DISCHARGE CAPACITOR, AUDIBLE MEANS INCLUDING A SPEAKER AND AN EARPHONE JACK SWITCH COUPLED TO THE SECONDARY OF SAID TRANSFORMER FOR PRODUCING A SERIES OF AUDIBLE OUTPUT BEATS, A VARIABLE RESISTANCE SELECTOR SWITCH IN THE DISCHARGE PATH OF SAID CAPACITOR, SAID SWITCH BEING VARIABLE IN DISCRETE STEPS OVER AN OUTPUT RANGE OF ABOUT FROM 1/2 TO 20 SECONDS PER BEAT, AND A FINE TUNING VARIABLE RESISTOR COUPLED ACROSS AT LEAST A PORTION OF SAID TRANSFORMER SECONDARY.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |