Patent US3200724A successfully refreshed from Google Patents.
US3200724A
Expired / Lapsed
US
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Apparatus for accurate formation and presentation of a visual display
Assignee: TDK Micronas GmbH
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Filing: 1962-11-29
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Granted: 1965-08-17
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Expires: 1982-11-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Stamm
- 👤 Carl E Rumsey
- 👤 Ray F Franke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:05
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03D; G03D5/00; G03D5/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN APPARATUS FOR EXPOSING AND DEVELOPING PHOTOGRAPHIC FILM AND PROJECTING THE IMAGE OF THE DEVELOPED FILM, A FILM CASING HAVING FRONT AND REAR FLAT PLATES WHICH ARE SUPERPOSED, ONE PLATE HAVING A PORTION RECESSED AWAY FROM THE OTHER PLATE TO PROVIDE A CHAMBER, A GASKET SANDWICHED BETWEEN SAID PLATES AND SURROUNDING SAID CHAMBER, SAID GASKET THEREBY SPACING SAID PLATES APART, A LENGTH OF FILM OVERLYING SAID GASKET AND BEING INTERPOSED BETWEEN SAID GASKET AND SAID OTHER PLATE, RESILIENT MEANS YIELDABLY URGING SAID PLATES TOGETHER AND SAID FILM INTO FLUID-SEALING ENGAGEMENT WITH SAID GASKET, SAID CHAMBER HAVING INLET AND OUTLET DUCTS BY MEANS OF WHICH PROCESSING FLUIDS MAY BE CIRCULATED THROUGH SAID CHAMBER, SAID PLATES BEING TRANSPARENT IN THE REGIONS WHICH OVERLIE SAID CHAMBER, THE SURFACE OF SAID OTHER PLATE ADJACENT SAID FILM
Claim 2
Dependent Claim
132 words
IN APPARATUS FOR EXPOSING AND DEVELOPING PHOTOGRAPHIC FILM AND PROJECTING THE IMAGE OF THE DEVELOPED FILM, A FILM CASING HAVING FRONT AND REAR FLAT PLATES WHICH ARE SUPERPOSED, ONE PLATE HAVING A PORTION RECESSED AWAY FROM THE OTHER PLATE TO PROVIDE A CHAMBER, A GASKET SANDWICHED BETWEEN SAID PLATES AND SURROUNDING SAID CHAMBER, SAID GASKET THEREBY SPACING SAID PLATES APART, A LENGTH OF FILM OVERLYING SAID GASKET AND BEING INTERPOSED BETWEEN SAID GASKET AND SAID OTHER PLATE, RESILIENT MEANS YIELDABLY URGING SAID PLATES TOGETHER AND SAID FILM INTO FLUID-SEALING ENGAGEMENT WITH SAID GASKET, SAID CHAMBER HAVING INLET AND OUTLET DUCTS BY MEANS OF WHICH PROCESSING FLUIDS MAY BE CIRCULATED THROUGH SAID CHAMBER, SAID PLATES BEING TRANSPARENT IN THE REGIONS WHICH OVERLIE SAID CHAMBER, THE SURFACE OF SAID OTHER PLATE ADJACENT SAID FILM
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |