Patent US2904733A successfully refreshed from Google Patents.
Patent US3409745A successfully refreshed from Google Patents.
US3409745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized annunciator with a recorded message
Assignee: Individual
•
Filing: 1962-03-22
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Granted: 1968-11-05
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Expires: 1982-03-22
Abstract
No abstract record available.
Inventors
- 👤 Winston E Kock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:07
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN ANNUNCIATOR COMPRISING AN INSTANTANEOUSLY RESPONSIVE AMPLIFIER, LOUDSPEAKER MEANS CONNECTED TO OUTPUT OF SAID AMPLIFIER, A POWER SUPPLY CIRCUIT, A SOURCE OF ELECTRONICALLY GENERATED SIGNALS CONNECTED TO THE INPUT OF SAID AMPLIFIER, AND A SINGLE ACTUATING SWITCH FOR SIMULTANEOUSLY ACTIVATING INSTANTANEOUSLY BOTH SAID AMPLIFIER AND SAID SIGNAL SOURCE BY CONNECTING SAID AMPLIFIER AND SAID SIGNAL SOURCE TO SAID POWER SUPPLY WHEREBY SAID SIGNALS ISSUE IMMEDIATELY AS SOUND FROM SAID LOUDSPEAKER.
Claim 2
Dependent Claim
70 words
AN ANNUNCIATOR COMPRISING AN INSTANTANEOUSLY RESPONSIVE AMPLIFIER, LOUDSPEAKER MEANS CONNECTED TO OUTPUT OF SAID AMPLIFIER, A POWER SUPPLY CIRCUIT, A SOURCE OF ELECTRONICALLY GENERATED SIGNALS CONNECTED TO THE INPUT OF SAID AMPLIFIER, AND A SINGLE ACTUATING SWITCH FOR SIMULTANEOUSLY ACTIVATING INSTANTANEOUSLY BOTH SAID AMPLIFIER AND SAID SIGNAL SOURCE BY CONNECTING SAID AMPLIFIER AND SAID SIGNAL SOURCE TO SAID POWER SUPPLY WHEREBY SAID SIGNALS ISSUE IMMEDIATELY AS SOUND FROM SAID LOUDSPEAKER.
References Cited (Backward Citations)
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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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |