US4027411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microfiche marking system
Assignee: Individual
•
Filing: 1976-02-19
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Granted: 1977-06-07
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Expires: 1996-02-19
Abstract
Abstract A system for alerting users of standard microfiche readers to updating of stored information. Printed "update" sheets permit a user to make full notation of complete information for ready reference by subsequent users. An illuminated viewer allows placement of a coded transparent grid card beneath a fiche on the viewer illuminated panel so that frame numbers are visible through the fiche. By use of permanent or washable translucent ink or opaque ink marker pens, coordinate squares of the fiche are appropriately marked to indicate updated information or deleted information.
Inventors
- 👤 Joseph Foldessy, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:14
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/115; G06; G06K; G06K1/00; G06K1/12; G09; G09F; G09F13/00; G09F13/04; G09F13/08; G09F13/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
141 words
A microfiche marking system comprising in combination an illuminated viewer having a translucent viewing panel and a pair of right angular guide elements defining one corner of said panel, an encoded transparent coordinate grid element of rectangular shape for placement on said panel with a square corner thereof engaged with said guide elements, and a translucent microfiche element of rectangular form for placement directly on the grid element in registration therewith while a square corner of the microfiche element is engaged with the guide elements, whereby areas of the illuminated microfiche element may be accurately marked with translucent or opaque ink to indicate to a subsequent reader that certain stored data is updated, changed or deleted, the encoded indicia of the grid element being viewable through the translucent microfiche element while both elements are positioned in registration on said illuminated panel.
Claim 2
Dependent Claim
141 words
A microfiche marking system comprising in combination an illuminated viewer having a translucent viewing panel and a pair of right angular guide elements defining one corner of said panel, an encoded transparent coordinate grid element of rectangular shape for placement on said panel with a square corner thereof engaged with said guide elements, and a translucent microfiche element of rectangular form for placement directly on the grid element in registration therewith while a square corner of the microfiche element is engaged with the guide elements, whereby areas of the illuminated microfiche element may be accurately marked with translucent or opaque ink to indicate to a subsequent reader that certain stored data is updated, changed or deleted, the encoded indicia of the grid element being viewable through the translucent microfiche element while both elements are positioned in registration on said illuminated panel.
Claim 3
Dependent Claim
38 words
A microfiche marking system as defined by claim 1, and an associated stored data update sheet on which a user of the system may write complete notations of data update or deletion for ready reference by other persons.
Claim 4
Dependent Claim
35 words
A microfiche marking system as defined by claim 1, and said grid element carrying a substantially opaque coordinate grid defining multiple coded indicia areas, and opaque coded indicia in said areas of the coordinate grid.
Claim 5
Dependent Claim
46 words
A microfiche marking system as defined by claim 1, and said illuminated viewer having a box-like body, and a dependent momentary illuminating switch on the bottom thereof adapted for activation when the box-like body is depressed against a solid surface by a user of the viewer.
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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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |