Patent US4345832A successfully refreshed from Google Patents.
US4345832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic film developer having a film guide means
Assignee: Dainippon Screen Manufacturing Co Ltd
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Filing: 1980-03-24
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Granted: 1982-08-24
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Expires: 2000-03-24
Abstract
Abstract An automatic film developer having a film guide means, wherein a film exposed is developed while it is conveyed in a developing liquid in a liquid tank, and then the film developed is taken out of the liquid along a contact surface of a film guide means in order to be transferred to a next process, and wherein the film guide means is provided with a recess in its contact surface so that the film may be separated from the contact surface in the recess portion.
Inventors
- 👤 Norimasa Nomura
- 👤 Yasuhito Yoshimi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:38
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/08; G03D3/13; G03D3/135; G03D3/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
110 words
An automatic film developer having a film guide means, comprising: a liquid tank in which a developing liquid is contained; a belt, movably mounted in the tank, which conveys a film fed in the tank in the developing liquid while the film is developed; and a film guide means having a contact surface in its one side, part of which is immersed in the liquid, and which includes a plurality of recesses over the majority of the portion of the length of said surface which is out of the liquid, whereby film which is transferred along said contact surface may be separated from said contact surface in the recess portions.
Claim 2
Dependent Claim
110 words
An automatic film developer having a film guide means, comprising: a liquid tank in which a developing liquid is contained; a belt, movably mounted in the tank, which conveys a film fed in the tank in the developing liquid while the film is developed; and a film guide means having a contact surface in its one side, part of which is immersed in the liquid, and which includes a plurality of recesses over the majority of the portion of the length of said surface which is out of the liquid, whereby film which is transferred along said contact surface may be separated from said contact surface in the recess portions.
Claim 3
Dependent Claim
24 words
A developer as claimed in claim 1, wherein said contact surface includes a plurality of teeth whereby said plurality of recesses is formed therebetween.
References Cited (Backward Citations)
US2786401A
Cited
US2927503A
Cited
DE1013511B
Cited
US3388688A
Cited
US3492933A
Cited
US3656676A
Cited
US3824616A
Cited
US4131356A
Cited
US4174901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-23 | 1986-02-22 | 1986-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-23 | 1990-02-22 | 1990-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-23 | 1994-02-22 | 1994-08-24 | $7700.00 | Window Closed / Lapsed |