US3267420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Depth measuring apparatus
Assignee: Individual
•
Filing: 1964-02-27
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Granted: 1966-08-16
•
Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 Pure Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:39
CPC Classifications
G; G01; G01C; G01C13/00; G01C13/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
APPARATUS FOR DETERMINING THE DEPTH DURING DESCENT OF A PROBE IN A BODY OF WATER, COMPRISING: A NONBUOYANT MEMBER; PRESSURE RESPONSIVE MEANS CARRIED BY SAID MEMBER FOR TRANSMITTING A SIGNAL, SAID MEANS INCLUDING A FIRST DIAPHRAGM REPTURABLE AT A PRE-SELECTED DEPTH, EXPOSED ON ONE SIDE TO THE SURROUNDING WATER AND ON THE OTHER SIDE TO A CONFINED AIR SPACE; A FIRST ELECTRODE POSITIONED IN SAID AIR SPACE, AND ELECTRICALLY INSULATED FROM SAID MEMBER WHEREBY THE RUPTURE OF SAID FIRST DIAPHRAGM CAUSES SAID FIRST ELECTRODE TO MODIFY THE TRANSMITTED SIGNAL FROM SAID PRESSURE RESPONSIVE MEANS.
Claim 2
Dependent Claim
94 words
APPARATUS FOR DETERMINING THE DEPTH DURING DESCENT OF A PROBE IN A BODY OF WATER, COMPRISING: A NONBUOYANT MEMBER; PRESSURE RESPONSIVE MEANS CARRIED BY SAID MEMBER FOR TRANSMITTING A SIGNAL, SAID MEANS INCLUDING A FIRST DIAPHRAGM REPTURABLE AT A PRE-SELECTED DEPTH, EXPOSED ON ONE SIDE TO THE SURROUNDING WATER AND ON THE OTHER SIDE TO A CONFINED AIR SPACE; A FIRST ELECTRODE POSITIONED IN SAID AIR SPACE, AND ELECTRICALLY INSULATED FROM SAID MEMBER WHEREBY THE RUPTURE OF SAID FIRST DIAPHRAGM CAUSES SAID FIRST ELECTRODE TO MODIFY THE TRANSMITTED SIGNAL FROM SAID PRESSURE RESPONSIVE MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |