US3240105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making an infrared image transmitting device
Assignee: American Optical Corp
•
Filing: 1960-08-16
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Granted: 1966-03-15
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Expires: 1980-08-16
Abstract
No abstract record available.
Inventors
- 👤 Richard F Woodcock
- 👤 George A Granitsas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:06
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/10; G02B6/102; G02B23/00; G02B23/24; G02B23/26; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF MAKING AN IMAGE TRANSMITTING MEANS OF THE CHARACTER DESCRIBED, SAID METHOD COMPRISINJG AS STEPS: PROVIDING AN ALUMINUM PLATE HAVING A PAIR OF OPPOSITE SURFACES AND HAVING A MULTIPLICITY OF SMOOTHWALLED PERFORATIONS EXTENDING BETWEEN THE SURFACES; ANODIZING THE PLATE FOR COATING SAID PERFORATION WALLS WITH ALIMINUM OXIDE; FILLING SAID PERFORATIONS WITH A MATERIAL WHICH IS ADAPTED TO TRANSMIT ELECTROMAGNETIC ENERGY AND WHICH HAS AN INDEX OF REFRACTION HIGHER THAN THAT OF SAID ALUMINUM OXIDE; AND ABRADING SAID PLATE SURFACES OF OPTICALLY FINISHING SAID FILLING MATERIAL AT EACH END OF SAID PERFORATIONS THEREBY TO FACILITATE RECEPTION OF SAID ENERGY THEREIN.
Claim 2
Independent Claim
101 words
A METHOD OF MAKING AN IMAGE TRANSMITTING MEANS OF THE CHARACTER DESCRIBED, SAID METHOD COMPRISINJG AS STEPS: PROVIDING AN ALUMINUM PLATE HAVING A PAIR OF OPPOSITE SURFACES AND HAVING A MULTIPLICITY OF SMOOTHWALLED PERFORATIONS EXTENDING BETWEEN THE SURFACES; ANODIZING THE PLATE FOR COATING SAID PERFORATION WALLS WITH ALIMINUM OXIDE; FILLING SAID PERFORATIONS WITH A MATERIAL WHICH IS ADAPTED TO TRANSMIT ELECTROMAGNETIC ENERGY AND WHICH HAS AN INDEX OF REFRACTION HIGHER THAN THAT OF SAID ALUMINUM OXIDE; AND ABRADING SAID PLATE SURFACES OF OPTICALLY FINISHING SAID FILLING MATERIAL AT EACH END OF SAID PERFORATIONS THEREBY TO FACILITATE RECEPTION OF SAID ENERGY THEREIN.
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |