US2706905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for testing oil in lubricating systems
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-08-18
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Granted: 1955-04-26
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Expires: 1971-08-18
Abstract
No abstract record available.
Inventors
- 👤 James A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:52
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN APPARATUS OF THE CHARACTER DESCRIBED FOR TESTING CRANKCASE LUBRICATING OIL IN SERVICE IN A CLOSED OIL CRANKCASE HAVING A NARROW MEASURING STICK OPENING, A REMOVABLE DEPENDING SLENDER TUBULAR ASSEMBLY INCLUDING AN OUTER TUBE ADAPTED TO BE INSERTED INTO SAID OPENING AND CONTAINING A SMALLER CONCENTRICALLY MOUNTED TUBE SPACED FROM THE INNER WALLS THEREOF TO PROVIDE AN ANNULAR PASSAGE, A CIRCULATING PUMP ATTACCHED TO THE UPPER END OF SAID
Claim 2
Dependent Claim
69 words
IN APPARATUS OF THE CHARACTER DESCRIBED FOR TESTING CRANKCASE LUBRICATING OIL IN SERVICE IN A CLOSED OIL CRANKCASE HAVING A NARROW MEASURING STICK OPENING, A REMOVABLE DEPENDING SLENDER TUBULAR ASSEMBLY INCLUDING AN OUTER TUBE ADAPTED TO BE INSERTED INTO SAID OPENING AND CONTAINING A SMALLER CONCENTRICALLY MOUNTED TUBE SPACED FROM THE INNER WALLS THEREOF TO PROVIDE AN ANNULAR PASSAGE, A CIRCULATING PUMP ATTACCHED TO THE UPPER END OF SAID
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) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |