Patent US3246276A successfully refreshed from Google Patents.
US3246276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid rheostat
Assignee: General Services Co
•
Filing: 1963-04-03
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Granted: 1966-04-12
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Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Frank J Miehe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:12
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
IN A LIQUID RHEOSTAT, A CONTAINER, A LIQUID ELECTROLYTE IN THE CONTAINER, THREE ELONGATED, WEDGE-SHAPED ELECTRODES IN SPACED VERTICAL POSITIONS IN THE CONTAINER AND ARRANGED IN A CIRCLE AND EACH ELECTRODE HAVING A PAIR OF GENERALLY RADIAL SIDES SPACED FROM AND IN CURRENT-TRANSMITTING RELATIONSHIP WITH THE MORE ADJACENT SIDES OF THE OTHER TWO ELECTRODES AND TAPERING FROM LARGE TO SMALL PROCEEDING DOWNWARDLY, AND MEANS FOR VARYING THE HEIGHT OF THE ELECTROLYTE IN THE CONTAINER IN ACCORDANCE WITH A CHARACTERISTIC OF THE ELECTRICAL DEVICE, AT LEAST ONE OF THE PAIR OF SIDES OF EACH ELECTRODE, PROCEEDING DOWNWARDLY, DIVERGING AWAY FROM THE MORE ADJACENT SIDE OF THE ONE OF THE ELECTRODES ADJACENT THERETO.
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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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |