Patent US4110774A successfully refreshed from Google Patents.
US4110774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film guide for film processing equipment
Assignee: Kreonite Inc
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Filing: 1976-11-08
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Granted: 1978-08-29
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Expires: 1996-11-08
Abstract
Abstract An elongated flexible leader for inserting into a film processor and guiding a roll of undeveloped film therethrough. The leader is attached to the film by inserting a tongue which is part of the leader through an aperture in one end of the film.
Inventors
- 👤 Vivian D. Krehbiel
- 👤 Ralph L. Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:25
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/08; G03D3/13; G03D3/135
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
139 words
A film guide for film processing equipment, the guide comprising: an elongated flexible leader having a flat surface, said leader having a front portion and a rear portion; an aperture disposed in the rear portion of said leader and therethrough; a flat flexible keeper having a front portion and a rear portion, the front portion of said keeper attached to the top of said leader; and an elongated tongue intergrally formed in the rear portion of said keeper by cutting a pair of parallel lines therethrough; the end of a roll of film having an aperture therethrough is received between the rear portion of said keeper and the rear portion of said leader, the film held in place by threading said tongue through the aperture in the film and through the aperture in the rear portion of said leader.
Claim 2
Dependent Claim
139 words
A film guide for film processing equipment, the guide comprising: an elongated flexible leader having a flat surface, said leader having a front portion and a rear portion; an aperture disposed in the rear portion of said leader and therethrough; a flat flexible keeper having a front portion and a rear portion, the front portion of said keeper attached to the top of said leader; and an elongated tongue intergrally formed in the rear portion of said keeper by cutting a pair of parallel lines therethrough; the end of a roll of film having an aperture therethrough is received between the rear portion of said keeper and the rear portion of said leader, the film held in place by threading said tongue through the aperture in the film and through the aperture in the rear portion of said leader.
Claim 3
Dependent Claim
59 words
The guide as described in claim 1, wherein said tongue includes a neck portion having a width smaller than the width of the aperture in the film, the width of said tongue being greater than the width of the aperture, the film pivoting about the neck of said tongue as the film is guided through the film processing equipment.
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) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |