US3159995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatically generated hydrostatic pressure simulation
Assignee: Individual
•
Filing: 1955-06-30
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Granted: 1964-12-08
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Expires: 1975-06-30
Abstract
No abstract record available.
Inventors
- 👤 Myron A Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:13
CPC Classifications
G; G01; G01H; G01H3/00; G01H3/005; F; F04; F04D; F04D35/00; G01S; G01S1/00; G01S1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN THE ART OF TESTING DEVICES SELECTIVELY SENSITIVE TO CERTAIN HYDROSTATIC PRESSURE SIGNATURES THE METHOD OF PRODUCING A LIQUID PRESSURE VARIABLE IN ACCORDANCE WITH A PRESSURE-SIGNATURE-BEARING ELECTRIC SIGNAL WHICH COMPRISES CONFINING A BODY OF LIQUID TO PROVIDE A RELATIVELY SMALL FREE SURFACE, EXPOSING THE FREE SURFACE TO THE PRESSURE OF A SUBSTANTIALLY CONSTANT VOLUME AIR STREAM, FEEDING AIR TO THE AIR STREAM THROUGH A HIGH RESISTANCE PATH, REMOVING AIR FROM THE STREAM THROUGH A LOW RESISTANCE PATH, AND
Claim 2
Dependent Claim
78 words
IN THE ART OF TESTING DEVICES SELECTIVELY SENSITIVE TO CERTAIN HYDROSTATIC PRESSURE SIGNATURES THE METHOD OF PRODUCING A LIQUID PRESSURE VARIABLE IN ACCORDANCE WITH A PRESSURE-SIGNATURE-BEARING ELECTRIC SIGNAL WHICH COMPRISES CONFINING A BODY OF LIQUID TO PROVIDE A RELATIVELY SMALL FREE SURFACE, EXPOSING THE FREE SURFACE TO THE PRESSURE OF A SUBSTANTIALLY CONSTANT VOLUME AIR STREAM, FEEDING AIR TO THE AIR STREAM THROUGH A HIGH RESISTANCE PATH, REMOVING AIR FROM THE STREAM THROUGH A LOW RESISTANCE PATH, AND
References Cited (Backward Citations)
US257754A
Cited
US1977498A
Cited
FR863236A
Cited
FR51056E
Cited
GB537588A
Cited
US2542905A
Cited
US2625167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |