US3145357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion chamber for orienting liquid level
Assignee: General Electric Co
•
Filing: 1961-07-10
•
Granted: 1964-08-18
•
Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Nicholas A Gettino
- 👤 Arthur F Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:40
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/08; H01F27/10; H01F27/12; H01F27/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN COMBINATION, ELECTRICAL APPARATUS, AN ENCLOSING CASING FOR SAID APPARATUS, INSULATING AND COOLING LIQUID IN SAID CASING, SAID CASING HAVING A NORMAL POSTION IN WHICH THE LEVEL OF SAID LIQUID IS ABOVE SAID APPARATUS, EXPANSION SPACE IN SAID CASING ABOVE THE NORMAL LEVEL OF SAID LIQUID, AND MEANS FOR MAINTAINING A RELATIVELY FIXED ORIENTATION OF SAID APPARATUS AND THE EFFECTIVE LEVEL OF SAID LIQUID WHEN SAID CASING IS TILTED AWAY FROM SAID NORMAL POSI-
Claim 2
Dependent Claim
74 words
IN COMBINATION, ELECTRICAL APPARATUS, AN ENCLOSING CASING FOR SAID APPARATUS, INSULATING AND COOLING LIQUID IN SAID CASING, SAID CASING HAVING A NORMAL POSTION IN WHICH THE LEVEL OF SAID LIQUID IS ABOVE SAID APPARATUS, EXPANSION SPACE IN SAID CASING ABOVE THE NORMAL LEVEL OF SAID LIQUID, AND MEANS FOR MAINTAINING A RELATIVELY FIXED ORIENTATION OF SAID APPARATUS AND THE EFFECTIVE LEVEL OF SAID LIQUID WHEN SAID CASING IS TILTED AWAY FROM SAID NORMAL POSI-
References Cited (Backward Citations)
US1347769A
Cited
US1394143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |