US3898358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holographic recording media
Assignee: RCA Corp
•
Filing: 1972-08-18
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Granted: 1975-08-05
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Expires: 1992-08-18
Abstract
Abstract A laminate suitable as a recording media for both holographic video and audio information comprising a planar, dimensionally stable substrate, such as an oriented polyethylene terephthalate film, having an adhesive layer thereon and an embossable and cuttable film bonded to the adhesive layer wherein the substrate and adhesive layers extend beyond the edges of the embossable film whereby improved adhesion of the film to an electroplated metal layer is provided.
Inventors
- 👤 Robert James Ryan
- 👤 Howard George Scheible
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:45
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/304; B32B27/306; B32B27/36; B32B3/00; B32B3/26; B32B3/28; B32B7/00; B32B7/04; B32B7/12; G; G03; G03H; G03H1/00; G03H1/02; G03H1/0276; G03H1/028; B32B2307/00; B32B2307/40; B32B2307/412; B32B2307/50; B32B2307/51; B32B2307/514; B32B2307/518; B32B2307/70; B32B2307/732; B32B2307/734; B32B2311/00; B32B2311/02; B32B2311/04; B32B2327/00; B32B2327/06; B32B2367/00; B32B2429/00; G03H2001/0288; G03H2001/0296; G03H2250/00; G03H2250/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24488; Y10T428/24612; Y10T428/24752; Y10T428/24777; Y10T428/28; Y10T428/31504; Y10T428/31551; Y10T428/31565; Y10T428/31573; Y10T428/31576; Y10T428/3158; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31935
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
98 words
A HOLOGRAPHIC RECORDING MEDIUM OF A LAMINATE WHICH COMPRISES A PLANAR, DIMENSIONALLY STABLE SUBSTRATE OF A BIAXIALLY ORIENTED POLYETHYLENE TEREPTHALATE FILM, A COEXTENSIVE ADHESIVE LAYER WHICH WILL NOT DEGRADE DURING A SUBSEQUENT ELECTROFORMING STEP BONDED THERETO AND AN ACBOSSABLE, CUTTABLE VINYL POLYMER FILM BONDED TO THE ADHESIVE LAYER HAVING HOLOGRAPHIC INFORMATION IN THE FORM OF A THREE DIMENSIONAL RELIEF PATTERN AND CUT AUDIO INFORMATION ON THE OUTSIDE SURFACE OF THE FILM WHEREIN THE SUBSTRATE AND ADHESIVE LAYERS EXTEND BEYOND THE EDGES OF THE EMBOSSABLE FILM WHEREBY IMPROVED ADHESION OF THE FILM TO AN ELECTROPLATED METAL LAYER IS PROVIDED.
Claim 2
Dependent Claim
98 words
A HOLOGRAPHIC RECORDING MEDIUM OF A LAMINATE WHICH COMPRISES A PLANAR, DIMENSIONALLY STABLE SUBSTRATE OF A BIAXIALLY ORIENTED POLYETHYLENE TEREPTHALATE FILM, A COEXTENSIVE ADHESIVE LAYER WHICH WILL NOT DEGRADE DURING A SUBSEQUENT ELECTROFORMING STEP BONDED THERETO AND AN ACBOSSABLE, CUTTABLE VINYL POLYMER FILM BONDED TO THE ADHESIVE LAYER HAVING HOLOGRAPHIC INFORMATION IN THE FORM OF A THREE DIMENSIONAL RELIEF PATTERN AND CUT AUDIO INFORMATION ON THE OUTSIDE SURFACE OF THE FILM WHEREIN THE SUBSTRATE AND ADHESIVE LAYERS EXTEND BEYOND THE EDGES OF THE EMBOSSABLE FILM WHEREBY IMPROVED ADHESION OF THE FILM TO AN ELECTROPLATED METAL LAYER IS PROVIDED.
Claim 3
Dependent Claim
19 words
A laminate according to claim 1 wherein the substrate, the adhesive layer and the embossable film are optically clear.
Claim 4
Dependent Claim
15 words
A laminate according to claim 1 wherein the embossable film is a cast vinyl film.
Claim 5
Dependent Claim
17 words
A laminate according to claim 3 wherein the cast vinyl film is a vinyl chloride/vinyl acetate copolymer.
Claim 6
Dependent Claim
18 words
A laminate according to claim 3 wherein the adhesive layer is an aliphatic thermoplastic polyester-based urethane coating resin.
Claim 7
Dependent Claim
14 words
A laminate according to claim 3 wherein the adhesive layer is a linear polyester.
Claim 8
Dependent Claim
21 words
A laminate according to claim 6 wherein the linear polyester is a polymer of ethylene glycol, terephthalate acid and sebacic acid.
Claim 9
Dependent Claim
24 words
A laminate according to claim 7 wherein the linear polyester is admixed with up to about 10% by weight of a vinyl chloride polymer.
Claim 10
Dependent Claim
20 words
A laminate according to claim 8 wherein the vinyl chloride polymer is a polymer of vinyl chloride and vinyl acetate.
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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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |