Patent US4766451A successfully refreshed from Google Patents.
US4766451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic film package
Assignee: Fujifilm Holdings Corp
•
Filing: 1987-06-30
•
Granted: 1988-08-23
•
Expires: 2007-06-30
Abstract
Abstract A photographic film package having at least a taking lens comprises a box-shaped internal film casing with its back open; a removable film cartridge containing a film therein, in the internal film casing; a box-shaped external casing enclosing the internal film casing tightly therein and which is provided with openings for exposing the taking lens and operation elements; and sealing sheets for covering the openings so as to maintain the inside of the film package moistureproof and/or waterproof.
Inventors
- 👤 Ikuo Fujimura
- 👤 Kimiaki Nakada
- 👤 Tsutomu Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:19
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/04; G03B17/00; G03B17/02; G03B17/04; G03B2219/00; G03B2219/02; G03B2219/04; G03B2219/045
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
63 words
A photographic film package with a taking lens and an operating element comprising: a polygonal box-shaped internal film casing with its back open; a removable film cartridge in said internal film casing; a rectangular box-shaped external casing tightly enclosing said internal film casing, said external film casing having openings for exposing said taking lens and operating element; and sealing means covering said openings.
Claim 2
Dependent Claim
63 words
A photographic film package with a taking lens and an operating element comprising: a polygonal box-shaped internal film casing with its back open; a removable film cartridge in said internal film casing; a rectangular box-shaped external casing tightly enclosing said internal film casing, said external film casing having openings for exposing said taking lens and operating element; and sealing means covering said openings.
Claim 3
Dependent Claim
18 words
A photographic film package as defined in claim 1, wherein said sealing means is a moistureproof plastic sheet.
Claim 4
Dependent Claim
21 words
A photographic film package as defined in claim 1, wherein said sealing means is removably attached to said external film casing.
Claim 5
Dependent Claim
15 words
A photographic film package as defined in claim 1, wherein said sealing means is transparent.
Claim 6
Dependent Claim
19 words
A disposable photographic film package as defined in claim 1, wherein said operating element is a film advancing member.
Claim 7
Dependent Claim
19 words
A disposable photographic film package as defined in claim 1, wherein said operating element is a shutter release button.
Claim 8
Dependent Claim
36 words
A photographic film package as defined in claim 1, wherein said sealing means comprises a separate waterproof sheet covering each of said openings, each said sheet being substantially smaller than any side of said external casing.
Claim 9
Dependent Claim
17 words
A photographic film package as defined in claim 7, in which each said plastic sheet is transparent.
Claim 10
Dependent Claim
36 words
A photographic film package as defined in claim 1, in which said operating element is recessed in a flat wall of said internal casing and extends outwardly no farther then the outer surface of said wall.
Claim 11
Dependent Claim
66 words
A photographic film package with a taking lens and an operating element comprising: a polygonal box-shaped internal film casing with its back open; a removable film cartridge in said internal film casing; a waterproof rectangular box-shaped external film casing tightly enclosing said internal film casing, said external film casing being provided with an opening allowing access to said operating element; and waterproof means sealing said opening.
Claim 12
Dependent Claim
66 words
A photographic film package with a taking lens and an operating element comprising: a polygonal box-shaped internal film casing with its back open; a removable film cartridge in said internal film casing; a waterproof rectangular box-shaped external film casing tightly enclosing said internal film casing, said external film casing being provided with an opening allowing access to said operating element; and waterproof means sealing said opening.
Claim 13
Dependent Claim
15 words
A photographic film package as defined in claim 10, wherein said sealing means is transparent.
Claim 14
Dependent Claim
18 words
A photographic film package as defined in claim 10, wherein said operating element is a film advancing member.
Claim 15
Dependent Claim
18 words
A photograhic film package as defined in claim 10, wherein said operating element is a shutter release button.
Claim 16
Dependent Claim
29 words
A photographic film package as defined in claim 10, wherein said waterproof means comprises a waterproof sheet of a size substantially smaller than any wall of said external casing.
Claim 17
Dependent Claim
14 words
A photographic film package as defined in claim 14, wherein said sheet is transparent.
Claim 18
Dependent Claim
36 words
A photographic film package as defined in claim 10, in which said operating element is recessed in a flat wall of said internal casing and extends outwardly no farther than the outer surface of said wall.
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) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |