US3204521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film reader
Assignee: DEL MONTE TECHNICAL ASSOCIATES
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Filing: 1961-09-05
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Granted: 1965-09-07
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Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 Max L Panzer
- 👤 Allan M Hudson
- 👤 Glynn H Lockwood
- 👤 Crane Sheldon Cyr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:01
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A FILM READER FOR USE WITH TRANSPARENCIES COMPRISING A FRAME, MEANS ON SAID FRAME FOR SUPPORTING A TRANSPARENCY AT A GIVEN ELEVATION, AND EXOTHERMIC LIGHT SOURCE ON SAID FRAME ABOVE SAID SUPPORTING MEAS, MEANS FOR CARRYING HEAT FROM SAID SOURCE UPWARDLY AWAY FROM SAID SUPPORTING MEANS, MEANS FOR REFLECTING VISIBLE LIGHT FROM SAID SOURCE DOWNWARDLY TOWARD SAID SUPPORTING MEANS WHILE PASSING INVISIBLE LIGHT FROM SAID SOURCE AWAY FROM SAID SUPPORTING MEANS, MEANS FOR REFLECTING DOWNWARDLY TRAVELLING INVISIBLE LIGHT AWAY FROM SAID SUPPORTING MEANS, MEANS ON SAID FRAME BELOW SAID SUPPORTING MEANS FOR RECEIVING SOME OF THE LIGHT TRANSMITTED THROUGH SAID TRANSPARENCY FROM SAID SOURCE, A DISPLAY SCREEN ON SAID FRAME ABOVE SAID SUPPORTING MEANS, AND MEANS ON SAID FRAME FOR DIRECTING TO SAID DISPLAY SCREEN SOME OF THE LIGHT TRANSMITTED THROUGH SAID TRANSPARENCY FROM SAID SOURCE TOWARD RECEIVING MEANS.
Claim 2
Dependent Claim
139 words
A FILM READER FOR USE WITH TRANSPARENCIES COMPRISING A FRAME, MEANS ON SAID FRAME FOR SUPPORTING A TRANSPARENCY AT A GIVEN ELEVATION, AND EXOTHERMIC LIGHT SOURCE ON SAID FRAME ABOVE SAID SUPPORTING MEAS, MEANS FOR CARRYING HEAT FROM SAID SOURCE UPWARDLY AWAY FROM SAID SUPPORTING MEANS, MEANS FOR REFLECTING VISIBLE LIGHT FROM SAID SOURCE DOWNWARDLY TOWARD SAID SUPPORTING MEANS WHILE PASSING INVISIBLE LIGHT FROM SAID SOURCE AWAY FROM SAID SUPPORTING MEANS, MEANS FOR REFLECTING DOWNWARDLY TRAVELLING INVISIBLE LIGHT AWAY FROM SAID SUPPORTING MEANS, MEANS ON SAID FRAME BELOW SAID SUPPORTING MEANS FOR RECEIVING SOME OF THE LIGHT TRANSMITTED THROUGH SAID TRANSPARENCY FROM SAID SOURCE, A DISPLAY SCREEN ON SAID FRAME ABOVE SAID SUPPORTING MEANS, AND MEANS ON SAID FRAME FOR DIRECTING TO SAID DISPLAY SCREEN SOME OF THE LIGHT TRANSMITTED THROUGH SAID TRANSPARENCY FROM SAID SOURCE TOWARD RECEIVING MEANS.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |