US3723121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recording images with laser beams
Assignee: EIDP Inc
•
Filing: 1970-11-03
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Granted: 1973-03-27
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Expires: 1990-11-03
Abstract
Abstract A PROCESS FOR LASER BEAM RECORDING BY IRRADIATING A LAYER OF A THERMOCHROMIC MATERIAL CHOSEN SO THAT UNDER IRRADIATION WITH A LASER OF A PARTICULAR COLOR THE MATERIAL IS CONVERTED BY ABSORPTION OF INCIDENT LASER RADIATION TO A COLOR WHICH TRANSMITS THE INCIDENT LASER BEAM SO THAT NO FURTHER CHANGE TAKES PLACE.
Inventors
- 👤 W Hauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:30
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14; B; B23; B23K; B23K2101/00; B23K2101/007; Y; Y10; Y10S; Y10S430/00; Y10S430/146; Y10S430/163
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |