Patent US1222999A successfully refreshed from Google Patents.
US3168689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical gauge
Assignee: Motors Liquidation Co
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Filing: 1962-05-08
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Granted: 1965-02-02
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Expires: 1982-05-08
Abstract
No abstract record available.
Inventors
- 👤 Robert B Gelenius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:05
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/16; G01R; G01R7/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
AN ELECTRICAL INDICATOR FOR ANGULARLY DISPLACING A MAGNETIC ARMATURE IN RESPONSE TO CHANGING CONDITIONS AT A REMOTE POINT, THE INDICATOR COMPRISING A PLURALITY OF DEFLECTING COILS HAVING THE MAGNETIC AXES THEREOF INTERSECTING AND ANGULARLY SPACED TO DEFINE A MAGNETIC PLANE, AN ANGULAR EXTREMITY OF THE MAGNETIC PLANE BEING DEFINED BY THE MAGNETIC AXIS OF ONE OF THE PLURALITY OF COILS, A SOURCE OF DIRECT VOLTAGE SIGNALS HAVING A VARIBLE MAGNITUDE IDICATIVE OF THE CHANGING CONDITIONS, A PLURALITY OF SWITCHING MEANS INTERCONNECTING THE PLURALITY OF COILS AND THE SIGNAL SOURCE, THE SWITCHING MEANS BEING NORMALLY OPEN CIRCUITED BUT RESPONSIVE TO THE MAGNITUDE OF THE SIGNAL VOLTAGE TO CONNECT THE COILS INDIVIDUALLY TO THE SIGNAL SOURCE IN SEQUENCE ACCORDING TO PROGRESSIVELY INCREASING PREDETERMINED MAGNITUDES OF SIG-
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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |