Patent US2731411A successfully refreshed from Google Patents.
US3081594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touch controlled electric alarm clock
Assignee: Tung Sol Electric Inc
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Filing: 1960-10-28
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Granted: 1963-03-19
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Expires: 1980-10-28
Abstract
No abstract record available.
Inventors
- 👤 Carl E Atkins
- 👤 James E Caufield
- 👤 Robert L Ziolkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:51
CPC Classifications
G; G04; G04G; G04G21/00; G04G21/08; G04C; G04C21/00; G04C21/16; G04C21/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN AN ELECTRIC ALARM CLOCK HAVING A CASING, LEADS FOR CONNECTION TO A POWER SUPPLY, AN ELECTRICAL ALARM AND AN ARM MOVED FROM A FIRST POSITION TO A SECOND POSITION WHEN THE ALARM IS TO BE SOUNDED, THE COMBINATION COMPRISING A CIRCUIT CONNECTING A SIGNAL LAMP, A RESISTOR AND THE ALARM IN SERIES ACROSS THE LEADS, THE CURRENT THROUGH SAID CIRCUIT, WHEN THE LEADS ARE CONNECTED TO THE POWER SUPPLY, BEING SUFFICIENT TO LIGHT SAID LAMP BUT INSUFFICIENT TO SOUND THE ALARM, A SHUNT CIRCUIT FOR SAID LAMP AND SAID RESISTOR INCLUDING SAID ARM AND A CONTACT ENGAGEABLE BY SAID ARM WHEN IN SAID SECOND POSITION, THE CURRENT THROUGH SAID ALARM BEING SUFFICIENT TO SOUND THE ALARM WHEN SAID SHUNT CIRCUIT IS CLOSED, AND MEANS RESPONSIVE TO TOUCH OF THE CLOCK CASING BY AN OPERATOR FOR OPENING SAID FIRST MENTIONED CIRCUIT, SAID LAST MENTIONED MEANS BEING OPERABLE ONLY WHEN SAID ARM IS IN SAID SECOND POSITION.
Claim 2
Dependent Claim
156 words
IN AN ELECTRIC ALARM CLOCK HAVING A CASING, LEADS FOR CONNECTION TO A POWER SUPPLY, AN ELECTRICAL ALARM AND AN ARM MOVED FROM A FIRST POSITION TO A SECOND POSITION WHEN THE ALARM IS TO BE SOUNDED, THE COMBINATION COMPRISING A CIRCUIT CONNECTING A SIGNAL LAMP, A RESISTOR AND THE ALARM IN SERIES ACROSS THE LEADS, THE CURRENT THROUGH SAID CIRCUIT, WHEN THE LEADS ARE CONNECTED TO THE POWER SUPPLY, BEING SUFFICIENT TO LIGHT SAID LAMP BUT INSUFFICIENT TO SOUND THE ALARM, A SHUNT CIRCUIT FOR SAID LAMP AND SAID RESISTOR INCLUDING SAID ARM AND A CONTACT ENGAGEABLE BY SAID ARM WHEN IN SAID SECOND POSITION, THE CURRENT THROUGH SAID ALARM BEING SUFFICIENT TO SOUND THE ALARM WHEN SAID SHUNT CIRCUIT IS CLOSED, AND MEANS RESPONSIVE TO TOUCH OF THE CLOCK CASING BY AN OPERATOR FOR OPENING SAID FIRST MENTIONED CIRCUIT, SAID LAST MENTIONED MEANS BEING OPERABLE ONLY WHEN SAID ARM IS IN SAID SECOND POSITION.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |