US3308653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration tonometer
Assignee: Individual
•
Filing: 1963-08-16
•
Granted: 1967-03-14
•
Expires: 1983-08-16
Abstract
No abstract record available.
Inventors
- 👤 Roth Wilfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:38
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
APPARATUS FOR MEASURING INTRAOCULAR PRESSURE COMPRISING, IN COMBINATION: (A) A FLOATINGLY MOUNTED MEMBER OF PREDETERMINED MASS FORMED TO BE PLACED AGAINST A GENERALLY SPHERICAL SURFACE OF THE EYE, (B) MEANS FOR APPLYING TO SAID MEMBER A BIASING FORCE IN THE DIRECTION TO PRESS IT AGAINST THE EYE FOR DETERMINING THE AVERAGE FORCE WITH WHICH SAID MEMBER IS PRESSED AGAINST THE EYE, (C) REGENERATIVE MEANS FOR APPLYING TO SAID MEMBER AN OSCILLATING FORCE OF A PEAK VALUE LESS THAN THAT OF SAID BIASING FORCE FOR CYCLICALLY VIBRATING SAID MEMBER IN CONTACT WITH THE EYE, (D) SAID REGENERATIVE MEANS COMPRISING MEANS RESPONSIVE TO THE NATURAL FREQUENCY OF OSCILLATION OF SAID MEMBER OF PREDETERMINED MASS SO PRESSED AGAINST THE EYE AND MEANS CONTROLLED BY SAID FREQUENCY RESPONSIVE MEANS FOR GENERATING SAID OSCILLATING FORCE AT THE NATURAL RESONANT FREQUENCY OF SAID MASS PRESSED AGAINST SAID EYE, AND
Claim 2
Dependent Claim
143 words
APPARATUS FOR MEASURING INTRAOCULAR PRESSURE COMPRISING, IN COMBINATION: (A) A FLOATINGLY MOUNTED MEMBER OF PREDETERMINED MASS FORMED TO BE PLACED AGAINST A GENERALLY SPHERICAL SURFACE OF THE EYE, (B) MEANS FOR APPLYING TO SAID MEMBER A BIASING FORCE IN THE DIRECTION TO PRESS IT AGAINST THE EYE FOR DETERMINING THE AVERAGE FORCE WITH WHICH SAID MEMBER IS PRESSED AGAINST THE EYE, (C) REGENERATIVE MEANS FOR APPLYING TO SAID MEMBER AN OSCILLATING FORCE OF A PEAK VALUE LESS THAN THAT OF SAID BIASING FORCE FOR CYCLICALLY VIBRATING SAID MEMBER IN CONTACT WITH THE EYE, (D) SAID REGENERATIVE MEANS COMPRISING MEANS RESPONSIVE TO THE NATURAL FREQUENCY OF OSCILLATION OF SAID MEMBER OF PREDETERMINED MASS SO PRESSED AGAINST THE EYE AND MEANS CONTROLLED BY SAID FREQUENCY RESPONSIVE MEANS FOR GENERATING SAID OSCILLATING FORCE AT THE NATURAL RESONANT FREQUENCY OF SAID MASS PRESSED AGAINST SAID EYE, AND
References Cited (Backward Citations)
US3070087A
Cited
US3192765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |