US3572122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring stick type gauge
Assignee: ROYLYN Inc
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Filing: 1969-07-28
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Granted: 1971-03-23
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Expires: 1989-07-28
Abstract
Abstract A GAUGE FOR DETERMINING THE LIQUID LEVEL OR QUANTITY OF LIQUID IN A SEALED TANK IN WHICH A VERTICALLY MOVABLE MEASURING STICK TYPE GAUGE ELEMENT IS HOUSED IN A TUBULAR ASSEMBLY WITHIN THE TANK. THE GAUGE IS THUS ISOLATED FROM THE CONTENTS OF THE TANK. A FLOAT OPERABLE IN THE TANK IS PROVIDED ON THE EXTERIOR OF THE TUBULAR ASSEMBLY AND INCLUDES A MAGNETIC DEVICE FOR ATTRACTING, OR MAGNETICALLY LATCHING, A PARTICULAR SECTION OF THE GAUGE ELEMENT HAVING A MAGNETIC DEVICE THEREON TO THE FLOAT FOR THE PURPOSE OF ORIENTING THE ELEMENT WITH RESPECT TO THE FLOAT.
Inventors
- 👤 Henry Nusbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:14
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/04; G01F23/30; G01F23/64; G01F23/66; G01F23/72
Claims Analysis
Total Claims: 0
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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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |