Patent US3072742A successfully refreshed from Google Patents.
US3072742A
Expired / Lapsed
US
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Generation of optical surfaces
Assignee: Block Engineering Inc
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Filing: 1959-06-29
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Granted: 1963-01-08
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Expires: 1979-06-29
Abstract
No abstract record available.
Inventors
- 👤 Myron J Block
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:55
CPC Classifications
G; G02; G02B; G02B1/00; G02B1/06; H; H04; H04N; H04N5/00; H04N5/74; H04N5/7416; H04N5/7425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF FORMING A RELIEF IMAGE ON A LIQUID LAYER CAPABLE OF FORMING A CONTINUOUSLY FREE SURFACE WHICH IS TEMPERATURE DEPENDENT SUCH THAT IT ASSUMES A SURFACE PATTERN OF ELEMENTARY CURVATURES AND SLOPES WHOSE LOCATION AND MAGNITUDE CORRESPOND TO TEMPERATURE DIFFERENTIALS BETWEEN ADJACENT PORTIONS OF THE SURFACE, COMPRISING THE STEPS OF: IMPOSING ON A FREE SURFACE OF SAID LIQUID LAYER AN ORIGINAL IMAGE PATTERN IN TERMS OF THERMALLY EFFECTIVE ENERGY VARIATION BETWEEN ADJACENT PATTERN ELEMENTS THEREBY TO INDUCE FORMATION OF SAID FREE SURFACE PATTERN; AND
Claim 2
Independent Claim
86 words
THE METHOD OF FORMING A RELIEF IMAGE ON A LIQUID LAYER CAPABLE OF FORMING A CONTINUOUSLY FREE SURFACE WHICH IS TEMPERATURE DEPENDENT SUCH THAT IT ASSUMES A SURFACE PATTERN OF ELEMENTARY CURVATURES AND SLOPES WHOSE LOCATION AND MAGNITUDE CORRESPOND TO TEMPERATURE DIFFERENTIALS BETWEEN ADJACENT PORTIONS OF THE SURFACE, COMPRISING THE STEPS OF: IMPOSING ON A FREE SURFACE OF SAID LIQUID LAYER AN ORIGINAL IMAGE PATTERN IN TERMS OF THERMALLY EFFECTIVE ENERGY VARIATION BETWEEN ADJACENT PATTERN ELEMENTS THEREBY TO INDUCE FORMATION OF SAID FREE SURFACE PATTERN; AND
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |