US3133442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level sensor
Assignee: Emerson Process Management Ltd
•
Filing: 1962-05-23
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Granted: 1964-05-19
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Frank D Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:00
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; G01F23/2966
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A LEVEL SENSOR COMPRISING A PAIR OF ELONGATED VIBRATORY MEMBERS POSITIONED SIDE-BY-SIDE AND GENERALLY UPRIGHT IN THE SPACE IN WHICH LEVEL IS TO BE SENSED, MEANS SUPPORTING SAID MEMBERS FOR VIBRATION, MEANS FOR VIBRATING THE MEMBERS SUBSTANTIALLY 180* OUT OF PHASE WITH
Claim 2
Dependent Claim
42 words
A LEVEL SENSOR COMPRISING A PAIR OF ELONGATED VIBRATORY MEMBERS POSITIONED SIDE-BY-SIDE AND GENERALLY UPRIGHT IN THE SPACE IN WHICH LEVEL IS TO BE SENSED, MEANS SUPPORTING SAID MEMBERS FOR VIBRATION, MEANS FOR VIBRATING THE MEMBERS SUBSTANTIALLY 180* OUT OF PHASE WITH
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |