Patent US3104928A successfully refreshed from Google Patents.
US3104928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bathkymograph
Assignee: Individual
•
Filing: 1962-03-29
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Granted: 1963-09-24
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Frank J Hester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:37
CPC Classifications
G; G01; G01C; G01C13/00; G01C13/008
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
179 words
A PRESSURE RESPONSIVE RECORDING INSTRUMENT COMPRISING A HOUSING, A CLOSURE FOR SAID HOUSING HAVING A PLURALITY OF OPENINGS THEREIN, A PISTON MEANS DISPLACEABLE WITHIN SAID HOUSING, AND HAVING AS INTEGRAL PARTS THEREOF A HEAD, AND A STEM EXTENDING OUT OF SAID HOUSING, BIASING MEANS BETWEEN SAID PISTON HEAD AND A SURFACE OF SAID HOUSING THRUSTING SAID PISTON TOWARD SAID OPENINGS OF SAID CLOSURE TO A NORMAL POSITION, FIRST MEANS FIXED TO SAID HOUSING AND COACTING WITH SAID PISTON STEM TO LIMIT MOVEMENT THEREOF TO LONGITUDINAL DISPLACEMENT RELATIVE TO SAID NORMAL POSITION, ROTATION DRIVING MEANS HAVING A PART THEREOF FIXED TO SAID PISTON STEM EXTENDED, AND A PART ROTATABLE RELATIVE TO ITS FIXED PART, ATTACHED TO A RECORD MATERIAL TRANSPORT MEANS, SECOND MEANS FIXED TO SAID HOUSING HAVING ATTACHED THERETO A RECORD MAKING MEANS IN POSITION TO OPERATE UPON A RECORD MATERIAL ON SAID TRANSPORT MEANS, A THIRD MEANS FIXED TO SAID HOUSING HAVING A SURFACE THEREON EFFECTIVE TO BRAKE THE MOVEMENT OF THE PART ROTATABLE AND THE RECORD TRANSPORT MEANS JOINED THEREWITH, WHEN SAID PISTON IS IN NORMAL POSITION
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |