Patent US3935583A successfully refreshed from Google Patents.
US3935583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making microfiches
Assignee: Individual
•
Filing: 1974-03-22
•
Granted: 1976-01-27
•
Expires: 1994-03-22
Abstract
Abstract A method and apparatus for producing a composite microfiche including a first emulsion bearing lamina on which one or more permanent data image frames are located and a second emulsion bearing lamina on which one or more updating data image frames are located, wherein the image or images on the first lamina are inverted and in different planar positions with respect to the image or images on the second lamina such that when the emulsion on the first lamina is superimposed on the emulsion on the second lamina, the laminae can be read together as one microfiche, the images appearing in the different planar positions in a substantially common focal plane. A three-reflective surface microfiche image inverter is also provided.
Inventors
- 👤 Harry A. H. Spence-Bate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:31
CPC Classifications
G; G03; G03D; G03D15/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
A composite microfiche including a first lamina having an emulsion on a first surface, one or more permanent data image frames located on said first surface, a second lamina having an emulsion on a second surface, one or more updating data image frames located on said second surface, said first lamina being superimposed on said second lamina with said first surface against said second surface defining a plane, said permanent data frames being in different positions on said plane than said updating data frames, all of said images being in a substantially common focal plane and non-inverted relative to each other.
Claim 2
Dependent Claim
101 words
A composite microfiche including a first lamina having an emulsion on a first surface, one or more permanent data image frames located on said first surface, a second lamina having an emulsion on a second surface, one or more updating data image frames located on said second surface, said first lamina being superimposed on said second lamina with said first surface against said second surface defining a plane, said permanent data frames being in different positions on said plane than said updating data frames, all of said images being in a substantially common focal plane and non-inverted relative to each other.
Claim 3
Dependent Claim
18 words
A composite microfiche as in claim 1 including means in each lamina for aligning said laminae when superimposed.
Claim 4
Dependent Claim
35 words
A composite microfiche as in claim 1 including means for joining said first and second lamina together at a juxtaposed edge and allowing rotational movement of said lamina relative to each other about said edge.
Claim 5
Dependent Claim
33 words
A composite microfiche as in claim 3 wherein said permanent data images are inverted with respect to said updating data images when said first and second lamina are in substantially the same plane.
Claim 6
Dependent Claim
23 words
A composite microfiche as in claim 3 wherein said joining means includes a strip of adhesive connecting said juxtaposed edges of said laminae.
Claim 7
Dependent Claim
100 words
A composite microfiche comprising a first lamina having a first image formed on a first surface, a second lamina having a second image formed on a second surface, means rotatably joining said first and second lamina at an edge so that said first image is inverted relative to said second image when said first lamina is substantially planar with said second lamina, and so that said first surface is against said second surface at a common focal plane and said first and second images are non-inverted relative to each other when said first lamina is superimposed on said second lamina.
Claim 8
Dependent Claim
100 words
A composite microfiche comprising a first lamina having a first image formed on a first surface, a second lamina having a second image formed on a second surface, means rotatably joining said first and second lamina at an edge so that said first image is inverted relative to said second image when said first lamina is substantially planar with said second lamina, and so that said first surface is against said second surface at a common focal plane and said first and second images are non-inverted relative to each other when said first lamina is superimposed on said second lamina.
Claim 9
Dependent Claim
26 words
A composite microfiche as in claim 6 wherein said first and second images are in different planar positions when said first and second laminae are superimposed.
Claim 10
Dependent Claim
18 words
A composite microfiche as in claim 6 including means in each lamina for aligning said laminae when superimposed.
Claim 11
Dependent Claim
23 words
A composite microfiche as in claim 6 wherein said joining means includes a strip of adhesive connecting said juxtaposed edges of said laminae.
Claim 12
Dependent Claim
26 words
A composite microfiche as in claim 6 wherein said first and second surfaces are emulsions and said first and second images are formed on said emulsions.
References Cited (Backward Citations)
US240374A
Cited
US666788A
Cited
US1736445A
Cited
US3014302A
Cited
US3499377A
Cited
US3574459A
Cited
US3524703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |