US3436216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image storage comprising a thermoplastic deformation pattern
Assignee: Xerox Corp
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Filing: 1965-08-02
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Granted: 1969-04-01
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Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 John C Urbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:32
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/42; G02B27/4233; G02B27/4238; G03; G03G; G03G16/00; G03G5/00; G03G5/02; G03G5/022; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD OF IMAGE STORAGE AND REPRODUCTION COMPRISING FORMING A THERMOPLASTIC DEFORMATION PATTERN ON AN IMAGING MEMBER, SAID PATTERN BEING COMPOSED OF A PERIODIC CARRIER AT THE RESONANT FREQUENCY FOR SAID MEMBER, SAID CARRIER BEDING AMPLITUDE MODULATED WITH AN IMAGE SIGNAL TO BE REPRODUCED, PROJECTING SAID PATTERN WITH A COHERENT LIGHT SOURCE AND DEMODULATING THE IMAGE SIGNAL FROM THE CARRIER IN THE PROJECTED BEAM BY SPATIAL FILTERING.
Claim 2
Independent Claim
67 words
A METHOD OF IMAGE STORAGE AND REPRODUCTION COMPRISING FORMING A THERMOPLASTIC DEFORMATION PATTERN ON AN IMAGING MEMBER, SAID PATTERN BEING COMPOSED OF A PERIODIC CARRIER AT THE RESONANT FREQUENCY FOR SAID MEMBER, SAID CARRIER BEDING AMPLITUDE MODULATED WITH AN IMAGE SIGNAL TO BE REPRODUCED, PROJECTING SAID PATTERN WITH A COHERENT LIGHT SOURCE AND DEMODULATING THE IMAGE SIGNAL FROM THE CARRIER IN THE PROJECTED BEAM BY SPATIAL FILTERING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |