Patent US3271218A successfully refreshed from Google Patents.
US3271218A
Expired / Lapsed
US
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Method of making pre-popped film transparency slides
Assignee: Eastman Kodak Co
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Filing: 1963-04-01
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Granted: 1966-09-06
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Howard F Ott
- 👤 James J Heffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:10
CPC Classifications
G; G03; G03D; G03D15/00; G03D15/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
THE METHOD OF MAKING PRE-POPPED FILM TRANSPARENCIES FROM AN ELONGATED FILMSTRIP OF THE TYPE WHEREIN THE FILMSTRIP INCLUDES A MARGINAL PORTION ALONG EACH LONGITUDINAL EDGE AND A PLURALITY OF CENTRALLY LOCATED IMAGE AREAS, WHICH COMPRISES THE STEPS OF: (A) PROGRESSIVELY BENDING SAID MARGINAL PORTIONS OF SAID FILMSTRIP IN A COMMON DIRECTION OUT OF THE NORMAL PLANE OF SAID IMAGE AREAS BY FEEDING SAID MARGINAL PORTIONS OF SAID FILMSTRIP BETWEEN PAIRS OF COOPERATING ROTATABLE FORMING ROLLERS DISPOSED ON OPPOSITE SIDES OF SAID TRANSPARENCY; (B) SEVERING SAID FILMSTRIP ALONG LINES TRANSVERSE TO SAID FILMSTRIP AND INTERMEDIATE SUCCESSIVE AREAS TO OBTAIN SEPARATE FILM TRANSPARENCIES; (C) MOUNTING EACH OF SAID FILM TRANSPARENCIES BETWEEN A PAIR OF APERTURED HALVES OF A FILM MOUNTED WITH THE MARGINAL PORTIONS OF THE TRANSPARENCY POSITIONED BETWEEN THE INNER SURFACES OF THE HALVES AND THE IMAGE AREA IN REGISTRY WITH THE APERTURE OF EACH OF THE HALVES OF THE MOUNT; AND (D) SECURING SAID MOUNT HALVES TOGETHER WITH SAID SURFACES ENGAGING AND APPLYING PRESSURE TO SAID MARGINAL PORTIONS WHEREBY THE IMAGE AREA OF THE TRANSPARENCY IS STRESSED AND A CURVATURE IS IMPARTED THERETO.
Claim 2
Independent Claim
183 words
THE METHOD OF MAKING PRE-POPPED FILM TRANSPARENCIES FROM AN ELONGATED FILMSTRIP OF THE TYPE WHEREIN THE FILMSTRIP INCLUDES A MARGINAL PORTION ALONG EACH LONGITUDINAL EDGE AND A PLURALITY OF CENTRALLY LOCATED IMAGE AREAS, WHICH COMPRISES THE STEPS OF: (A) PROGRESSIVELY BENDING SAID MARGINAL PORTIONS OF SAID FILMSTRIP IN A COMMON DIRECTION OUT OF THE NORMAL PLANE OF SAID IMAGE AREAS BY FEEDING SAID MARGINAL PORTIONS OF SAID FILMSTRIP BETWEEN PAIRS OF COOPERATING ROTATABLE FORMING ROLLERS DISPOSED ON OPPOSITE SIDES OF SAID TRANSPARENCY; (B) SEVERING SAID FILMSTRIP ALONG LINES TRANSVERSE TO SAID FILMSTRIP AND INTERMEDIATE SUCCESSIVE AREAS TO OBTAIN SEPARATE FILM TRANSPARENCIES; (C) MOUNTING EACH OF SAID FILM TRANSPARENCIES BETWEEN A PAIR OF APERTURED HALVES OF A FILM MOUNTED WITH THE MARGINAL PORTIONS OF THE TRANSPARENCY POSITIONED BETWEEN THE INNER SURFACES OF THE HALVES AND THE IMAGE AREA IN REGISTRY WITH THE APERTURE OF EACH OF THE HALVES OF THE MOUNT; AND (D) SECURING SAID MOUNT HALVES TOGETHER WITH SAID SURFACES ENGAGING AND APPLYING PRESSURE TO SAID MARGINAL PORTIONS WHEREBY THE IMAGE AREA OF THE TRANSPARENCY IS STRESSED AND A CURVATURE IS IMPARTED THERETO.
References Cited (Backward Citations)
US3013354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |