US3705464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microfilm holder
Assignee: Individual
•
Filing: 1970-10-02
•
Granted: 1972-12-12
•
Expires: 1990-10-02
Abstract
Abstract A transparent holder for a plurality of microfilm strips arranged in parallel pocketed array thereacross and including thin magnetic strip means carried by a pocket of the holder in a position adapting the assembly for use in a fanning magnetic type of filing system wherein a storage file tray or drawer includes magnet means along the sides thereof acting through the magnetic strip means to cause fanning out or separation of the upper margins of a prearranged group of holders by magnetic repulsion in order to facilitate visual survey of the fanned holders for selective holder removal from the storage file or insertion thereof at a predetermined, proper location.
Inventors
- 👤 Ernest A Dahl Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:11
CPC Classifications
B; B42; B42F; B42F17/00; B42F17/02; G; G03; G03B; G03B21/00; G03B21/54; G03B21/64
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
A microfilm strip holder adapted for use in a fanning magnetic filing system, and comprising two rectangular panels of transparent relatively thin plastic sheet material in superposed relation, elongate horizontal spacer strips secured between said panels at spaced intervals providing a plurality of horizontal pockets for receiving microfilm strips, magnetic strip means enclosed within at least one of said pockets including magnetic sections positioned within and substantially filling opposite extremities of said last mentioned holder pocket, and relatively thin further strip means approximating the width of the holder pockets interconnecting said magnetic sections and maintaining said sections selectively and removably in spaced relation thereby rendering said sections shiftable longitudinally as a unit within one of said pockets.
Claim 2
Dependent Claim
117 words
A microfilm strip holder adapted for use in a fanning magnetic filing system, and comprising two rectangular panels of transparent relatively thin plastic sheet material in superposed relation, elongate horizontal spacer strips secured between said panels at spaced intervals providing a plurality of horizontal pockets for receiving microfilm strips, magnetic strip means enclosed within at least one of said pockets including magnetic sections positioned within and substantially filling opposite extremities of said last mentioned holder pocket, and relatively thin further strip means approximating the width of the holder pockets interconnecting said magnetic sections and maintaining said sections selectively and removably in spaced relation thereby rendering said sections shiftable longitudinally as a unit within one of said pockets.
Claim 3
Dependent Claim
16 words
A microfilm holder as set forth in claim 1, wherein the interconnecting mounting strip is nonmagnetic.
Claim 4
Dependent Claim
31 words
A microfilm strip holder as set forth in claim 1, wherein the magnetic strip means comprises sections of magnetic strip stock secured to opposite extremities of a thin transparent mounting strip.
Claim 5
Dependent Claim
42 words
A microfilm strip holder aS set forth in claim 6 wherein the magnetic strip sections and transparent mounting strip are so dimensioned as to assure the reception of a microfilm strip within the holder pocket in the space between said magnetic sections.
References Cited (Backward Citations)
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US2656091A
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US2722936A
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US3224824A
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US3238655A
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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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |