US3234464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neon type voltage detector
Assignee: Mcgregor & Machray
•
Filing: 1962-06-20
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Granted: 1966-02-08
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Expires: 1982-06-20
Abstract
No abstract record available.
Inventors
- 👤 Robert Y Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:56
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/145; G01R19/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A DETACHABLE POWER INDICATING DEVICE FOR MOUNTING ONE THE PRONGS OF AN ELECTRIC PLUG, SAID DEVICE COMPRISING AN ELONGATED STRIP OF TRANSLUCENT PLASTIC FOLDED AT ITS CENTRE TO FORM A CYLINDRICAL CASING AND EXTENDING TO ONE SIDE OF THE CASING TO FORM A FLAT TAB, MEANS SEALING THE ENDS WHICH FORM THE TAB, SLOTS FORMED THROUGH THE TAB TO RECEIVE THE PRONGS OF A PLUG THERETHROUGH, CONTACT PLATES MOUNTED WITHIN SAID TAB TO REGISTER WITH THE SLOTS, A NEON BULB AND A RESISTOR CONNECTED IN SERIES WITH EACH OTHER AND DISPOSED WITHIN THE CASING, AND WIRES CONNECTING SAID PLATES TO SAID BULB AND SAID RESISTOR.
Claim 2
Dependent Claim
105 words
A DETACHABLE POWER INDICATING DEVICE FOR MOUNTING ONE THE PRONGS OF AN ELECTRIC PLUG, SAID DEVICE COMPRISING AN ELONGATED STRIP OF TRANSLUCENT PLASTIC FOLDED AT ITS CENTRE TO FORM A CYLINDRICAL CASING AND EXTENDING TO ONE SIDE OF THE CASING TO FORM A FLAT TAB, MEANS SEALING THE ENDS WHICH FORM THE TAB, SLOTS FORMED THROUGH THE TAB TO RECEIVE THE PRONGS OF A PLUG THERETHROUGH, CONTACT PLATES MOUNTED WITHIN SAID TAB TO REGISTER WITH THE SLOTS, A NEON BULB AND A RESISTOR CONNECTED IN SERIES WITH EACH OTHER AND DISPOSED WITHIN THE CASING, AND WIRES CONNECTING SAID PLATES TO SAID BULB AND SAID RESISTOR.
References Cited (Backward Citations)
US2449150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |