Patent US2547236A successfully refreshed from Google Patents.
Patent US3302171A successfully refreshed from Google Patents.
US3302171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle engine coolant condition indicator
Assignee: Motors Liquidation Co
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Filing: 1964-10-01
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Granted: 1967-01-31
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 William J Sensing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:37
CPC Classifications
B; B60; B60R; B60R16/00; B60R16/02; B60R16/023; B60R16/0231; B60R16/0232; F; F01; F01P; F01P11/00; F01P11/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AN INDICATING DEVICE COMPRISING: AN ELECTRICAL POWER SOURCE; INDICATING MEANS, MEANS CONNECTING ONE SIDE OF SAID INDICATING MEANS TO ONE SIDE OF SAID POWER SOURCE; FIRST MEANS RESPONSIVE TO A FIRST TEMPERATURE RANGE TO ESTABLISH A CONDUCTIVE PATH BETWEEN THE OPPOSITE SIDE OF SAID ELECTRICAL POWER SOURCE AND THE INDICATING MEANS; SECOND MEANS RESPONSIVE TO A SECOND TEMPERATURE RANGE; AND THIRD MEANS RESPONSIVE TO A PRESSURE RANGE AND COOP-
Claim 2
Dependent Claim
69 words
AN INDICATING DEVICE COMPRISING: AN ELECTRICAL POWER SOURCE; INDICATING MEANS, MEANS CONNECTING ONE SIDE OF SAID INDICATING MEANS TO ONE SIDE OF SAID POWER SOURCE; FIRST MEANS RESPONSIVE TO A FIRST TEMPERATURE RANGE TO ESTABLISH A CONDUCTIVE PATH BETWEEN THE OPPOSITE SIDE OF SAID ELECTRICAL POWER SOURCE AND THE INDICATING MEANS; SECOND MEANS RESPONSIVE TO A SECOND TEMPERATURE RANGE; AND THIRD MEANS RESPONSIVE TO A PRESSURE RANGE AND COOP-
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |