Patent US3039695A successfully refreshed from Google Patents.
US3565978A
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Replication of surface deformation images
Assignee: Xerox Corp
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Filing: 1967-09-11
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Granted: 1971-02-23
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Expires: 1987-09-11
Abstract
Abstract A METHOD FOR PREPARING A PLURALITY OF SUBSTANTIALLY IDENTICAL REPLICAS OF SURFACE DEFORMATION IMAGES, E.G., PHASE HOLOGRAMS IS DISCLOSED. BASICALLY, THIS PROCESS INCLUDES THE STEPS OF FORMING A FIRST GENERATION REPLICA BY CASTING AGAINST THE ORIGINAL SURFACE DEFORMATION IMAGE, FORMING A SECOND GENERATION REPLICA BY CASTING AGAINST THE FIRST GENERATION REPLICA, TRANSFERRING THE CAST SECOND GENERATION REPLICA TO A SUPPORT SURFACE, AND REPEATING THE SECOND GENERATION CASTING AND TRANSFER STEPS. THE METHOD MAY INCLUDE THE STEPS OF FORMING A METAL MASTER FROM THE SECOND OR THIRD GENERATION REPLICA AND STAMPING A PLURALITY OF SIMILAR REPLICAS USING THE METAL MASTER.
Inventors
- 👤 William F Folger
- 👤 Ronald H Cohen
- 👤 John C Urbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
B; B41; B41C; B41C3/00; B41C3/08; G; G03; G03G; G03G5/00; G03G5/02; G03G5/022; G03H; G03H1/00; G03H1/02; G03H1/04; G03H1/18; G03H1/024; G03H1/0244; G03H1/0486; G03H1/182; G03H1/0276; G03H2001/0284; G03H2001/0288; G03H2001/0296; G03H2260/00; G03H2260/50; G03H2260/53
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |