US3234024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic film roll and methods and apparatus for manufacturing same
Assignee: Polaroid Corp
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Filing: 1963-01-25
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Granted: 1966-02-08
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Expires: 1983-01-25
Abstract
No abstract record available.
Inventors
- 👤 Leonard L Leinonen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:49
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/18; G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03C; G03C3/00; G03C3/02; G03C8/00; G03C8/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PHOTOGRAPHIC FILM ROLL COMPRISING A TUBE COMPOSED OF A PLURALITY OF CONVOLUTIONS OF SHEET-LIKE MATERIAL, AT LEAST A PORTION OF THE INNER CONVOLUTIONS OF SHEET-LIKE MATERIAL CARRYING A PHOTOSENSITIVE STRATUM, AT LEAST THE OUTER CONVOLUTION OF SHEET-LIKE MATERIAL BEING A LEADER PORTION FOR FACILITATING THE POSITIONING OF SAID FILM IN A PHOTOGRAPHIC APPARATUS, THE ENDS OF SAID TUBE BEING CLOSED BY END CAPS ATTACHED TO THE OUTER CONVOLUTION OF SAID TUBE, SAID LEADER PORTION INCLUDING SEVERING MEANS ADJACENT THE EDGES WHEREBY SAID LEADER MAY BE READILY SEVERED FROM SAID END CAPS.
Claim 2
Dependent Claim
151 words
APPARATUS FOR FORMING PHOTOGRAPHIC FILM ROLLS COMPRISING, IN COMBINATION: (A) MEANS FOR SUPPLYING A PLURALITY OF SPACED APART STRIPS OF A NON-PHOTOSENSITIVE SHEET LIKE MATERIAL; (B) MEANS FOR SUPPLYING A STRIP OF A PHOTOSENSITIVE SHEET-LIKE MATERIAL BETWEEN EACH PAIR OF SAID SPACEDAPART STRIPS OF NON-PHOTOSENSITIVE MATERIAL; (C) MEANS FOR POSITIONING AND ADVANCING ADJACENT STRIPS OF NON-PHOTOSENSITIVE AND PHOTOSENSITIVE MATERIAL IN PARALLEL RELATIONSHIP WITH EDGE PORTIONS THEREOF IN OVERLAPPING RELATIONSHIP; (D) MEANS FOR BONDING TOGETHER SAID OVERLAPPING EDGE PORTIONS TO FORM A WEB; (E) MEANS FOR TRANSVERSELY SEVERING SAID WEB TO PROVIDE A LENGTH OF FILM HAVING ALTERNATING NON-PHOTOSENSITIVE AND PHOTOSENSITIVE AREAS; (F) WIND-UP MEANS FOR WINDING SAID LENGTH OF FILM INTO A TUBE; (G) MEANS FOR REMOVING SAID TUBE FROM SAID WIND-UP MEANS AND TO ALLOW SAID TUBE TO EXPAND IN DIAMETER BEFORE SAID END CAPS ARE ATTACHED; AND (H) MEANS FOR ATTACHING A CAP TO EACH END OF SAID TUBE.
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |