Patent US3333984A successfully refreshed from Google Patents.
US3333984A
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Process for the formation of images on a substrate
Assignee: 3M Co
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Filing: 1963-08-30
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Granted: 1967-08-01
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Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred F Kaspaul
- 👤 Erika E Kaspaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:32
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/14; H05K3/146; C; C23; C23C; C23C14/00; C23C14/04; C23C14/042; C23C14/048; G; G03; G03C; G03C1/00; G03C1/705; G03G; G03G17/00; G03G5/00; G03G5/02; H10; H10N; H10N97/00; H10P; H10P95/00; Y; Y10; Y10S; Y10S430/00; Y10S430/143; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49156; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A PROCESS FOR THE FORMATION OF IMAGES ON A SUBSTRATE, WHICH COMPRISES FORMING AN INVISIBLE LATENT IMAGE CONSISTING OF NUCLEI OF ATOMS OF A METAL HAVING HIGH HEAT OF SUBLIMATION UPON A SUBSTRATE AND RENDERING THE SAID LATENT IMAGE DETECTABLY BY VAPOR DEPOSING, IN VACUO, AND WHILE MAINTAINING THE SURFACE OF THE SUBSTRATE AT A TEMPERATURE IN THE RANGE OF FROM 100*C. TO 1000*C., A SOLID MATERIAL HAVING HEAT OF SUBLIMATION LOWER THAN THAT OF THE METAL OF THE SAID INVISIBLE LATENT IMAGE WHICH IS DEPOSITED FROM THE VAPOR STATE TO FORM A DEFECTABLE IMAGE CORRESPONDING TO THE SAID LATENT IMAGE.
Claim 2
Dependent Claim
101 words
A PROCESS FOR THE FORMATION OF IMAGES ON A SUBSTRATE, WHICH COMPRISES FORMING AN INVISIBLE LATENT IMAGE CONSISTING OF NUCLEI OF ATOMS OF A METAL HAVING HIGH HEAT OF SUBLIMATION UPON A SUBSTRATE AND RENDERING THE SAID LATENT IMAGE DETECTABLY BY VAPOR DEPOSING, IN VACUO, AND WHILE MAINTAINING THE SURFACE OF THE SUBSTRATE AT A TEMPERATURE IN THE RANGE OF FROM 100*C. TO 1000*C., A SOLID MATERIAL HAVING HEAT OF SUBLIMATION LOWER THAN THAT OF THE METAL OF THE SAID INVISIBLE LATENT IMAGE WHICH IS DEPOSITED FROM THE VAPOR STATE TO FORM A DEFECTABLE IMAGE CORRESPONDING TO THE SAID LATENT IMAGE.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |