Patent US2824861A successfully refreshed from Google Patents.
US3167658A
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Apparatus for use in sensing the pulse
Assignee: Air Shields Inc
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Filing: 1961-07-17
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Granted: 1965-01-26
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Expires: 1981-07-17
Abstract
No abstract record available.
Inventors
- 👤 Richter Harold Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:11
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/024; A61B5/02416
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A TRANSDUCER ADAPTED FOR USE IN TAKING A PULSE READING COMPRISING A DEVICE UNITARILY INCORPORATING A LIGHT SOURCE AND A PHOTOCELL AND HAVING A SIDE FACE ADAPTED TO BE PLACED IN CONTACT WITH A BODY SURFACE, BOTH SAID LIGHT SOURCE AND SAID PHOTOCELL BEING OPTICALLY EXPOSED THROUGH SAID ONE SIDE FACE OF THE DEVICE, AND AN OPTICAL SHIELD BETWEEN THE LIGHT SOURCE AND THE PHOTOCELL, THE SHIELD HAVING AN EDGE PORTION EXTENDED SUBSTANTIALLY TO THE PLANE OF SAID SIDE FACE.
Claim 2
Dependent Claim
80 words
A TRANSDUCER ADAPTED FOR USE IN TAKING A PULSE READING COMPRISING A DEVICE UNITARILY INCORPORATING A LIGHT SOURCE AND A PHOTOCELL AND HAVING A SIDE FACE ADAPTED TO BE PLACED IN CONTACT WITH A BODY SURFACE, BOTH SAID LIGHT SOURCE AND SAID PHOTOCELL BEING OPTICALLY EXPOSED THROUGH SAID ONE SIDE FACE OF THE DEVICE, AND AN OPTICAL SHIELD BETWEEN THE LIGHT SOURCE AND THE PHOTOCELL, THE SHIELD HAVING AN EDGE PORTION EXTENDED SUBSTANTIALLY TO THE PLANE OF SAID SIDE FACE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |