US3387494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioned membrane
Assignee: Individual
•
Filing: 1966-04-28
•
Granted: 1968-06-11
•
Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 Marcel J E Golay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:19
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/02; G; G01; G01L; G01L9/00; G01L9/0041; G01L9/0042; G01L9/0044; G01L9/0076; G01L9/0077
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A COMPOSITE TENSIONED MEMBRANE FOR THE DETECTION OF DIFFERENTIAL PRESSURES COMPRISING AT LEAST TWO LAYERS OF DIFFERENT MATERIALS FIRMLY SUPPORTED AT THEIR PERIPHERIES, ONE OF SAID LAYERS CONSISTING OF ARSENIC AND THE OTHER LAYER HAVING PHYSICAL CHARACTERISTICS TO ENABLE THE MEASUREMENT OF SMALL DISTENSIONS OF SAID MEMBRANE PRODUCED BY SAID DIFFERENTIAL PRESSURES.
Claim 2
Dependent Claim
52 words
A COMPOSITE TENSIONED MEMBRANE FOR THE DETECTION OF DIFFERENTIAL PRESSURES COMPRISING AT LEAST TWO LAYERS OF DIFFERENT MATERIALS FIRMLY SUPPORTED AT THEIR PERIPHERIES, ONE OF SAID LAYERS CONSISTING OF ARSENIC AND THE OTHER LAYER HAVING PHYSICAL CHARACTERISTICS TO ENABLE THE MEASUREMENT OF SMALL DISTENSIONS OF SAID MEMBRANE PRODUCED BY SAID DIFFERENTIAL PRESSURES.
References Cited (Backward Citations)
US2557096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |