Patent US4507817A successfully refreshed from Google Patents.
US3348547A
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Photocoagulating apparatus
Assignee: American Optical Corp
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Filing: 1964-10-16
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Granted: 1967-10-24
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Expires: 1984-10-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Kavanagh
- 👤 Charles J Koester
- 👤 Milton R Thorburn
- 👤 Robert B Tackaberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:39
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08; B23K26/10; A; A61; A61B; A61B3/00; A61B3/10; A61B3/12; A61B3/1225; A61F; A61F9/00; A61F9/007; A61F9/0079; A61F9/008; A61F9/00821; A61F9/00823; A61F2009/00861; A61F2009/00863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
PHOTOCOAGULATING APPARATUS COMPRISING A FIRST OPTICAL SYSTEM, FIELD STOP MEANS OF SELECTED SIZE, A LASER ACTUABLE TO EMIT A BEAM OF INTENSE LIGHT, LIGHT-DIFFUSING MEANS INTERPOSED IN SAID LIGHT BEAM, SAID DIFFUSING MEANS BEING ARRANGED AT THE FIRST PRINCIPAL FOCUS OF SAID FIRST OPTICAL SYSTEM SO THAT SAID FIRST OPTICAL SYSTEM DIRECTS LIGHT FROM SAID DIFFUSING MEANS THROUGH SAID STOP, AND A SECOND OPTICAL SYSTEM ADAPTED TO BE ARRANGED BETWEEN SAID STOP AND AN EYE IN TELECENTRIC RELATION TO THE PUPIL OF SAID EYE, SAID FIRST AND SECOND OPTICAL SYSTEMS BEING COOPERABLE TO FORM AN IMAGE OF SAID DIFFUSING MEANS AT SAID EYE PUPIL, SAID SECOND OPTICAL SYSTEM BEING COOPERABLE WITH THE REFRACTIVE MEDIA OF SAID EYE TO FORM AN IMAGE OF SAID STOP AT THE RETINA OF SAID EYE FOR PHOTOCOAGULATING SAID RETINA AT THE LOCATION OF SAID RETINAL IMAGE.
Claim 2
Dependent Claim
141 words
PHOTOCOAGULATING APPARATUS COMPRISING A FIRST OPTICAL SYSTEM, FIELD STOP MEANS OF SELECTED SIZE, A LASER ACTUABLE TO EMIT A BEAM OF INTENSE LIGHT, LIGHT-DIFFUSING MEANS INTERPOSED IN SAID LIGHT BEAM, SAID DIFFUSING MEANS BEING ARRANGED AT THE FIRST PRINCIPAL FOCUS OF SAID FIRST OPTICAL SYSTEM SO THAT SAID FIRST OPTICAL SYSTEM DIRECTS LIGHT FROM SAID DIFFUSING MEANS THROUGH SAID STOP, AND A SECOND OPTICAL SYSTEM ADAPTED TO BE ARRANGED BETWEEN SAID STOP AND AN EYE IN TELECENTRIC RELATION TO THE PUPIL OF SAID EYE, SAID FIRST AND SECOND OPTICAL SYSTEMS BEING COOPERABLE TO FORM AN IMAGE OF SAID DIFFUSING MEANS AT SAID EYE PUPIL, SAID SECOND OPTICAL SYSTEM BEING COOPERABLE WITH THE REFRACTIVE MEDIA OF SAID EYE TO FORM AN IMAGE OF SAID STOP AT THE RETINA OF SAID EYE FOR PHOTOCOAGULATING SAID RETINA AT THE LOCATION OF SAID RETINAL IMAGE.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |