Patent US3131557A successfully refreshed from Google Patents.
US3131557A
Expired / Lapsed
US
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Specular surface analysis
Assignee: Union Carbide Corp
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Filing: 1960-10-03
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Granted: 1964-05-05
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Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Hoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:20
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A METHOD FOR DETERMINING PHYSICAL CHARACTERISTICS OF A COATING MATERIAL DURING TRANSFORMATION OF SAID MATERIAL FROM A LIQUID STATE TO A SOLID STATE COMPRISING APPLYING A FILM OF SAID MATERIAL IN LIQUID STATE TO A SUBSTANTIALLY FLAT SURFACE, DIRECTING A LIGHT BEAM TO SAID FILM OF SAID MATERIAL AT AN ANGEL FROM A LINE NORMAL TO SAID FILM, SAID ANGLE BEING LESS THAN 90* BUT MORE THAN 15*, ARRANGING AND DISPOSING A PHOTONIC SIGNAL GENERATOR MEANS IN THE PATH OF SAID LIGHT BEAM AT A POINT SPECULARLY OPPOSITE THE SOURCE OF SAID LIGHT BEAM TO SENSE LIGHT REFLECTED FROM SAID FILM AND TO DEVELOP A FIRST SIGNAL PROPORTIONAL TO THE INTENSITY OF LIGHT SENSED, CONCURRENTLY HEATING SAID FILM AT A CONTROLLED HEATING RATE, SENSING THE AMOUNT DOF APPLIED HEAT AND DEVELOPING A SECOND SIGNAL PROPORTIONAL TO THE AMOUNT OF HEAT SENSED AND RECORDING, A S COFUNCTIONS OF TIME, THE AMPLITUDES OF SAID FIRST AND SAID SECOND SIGNALS.
Claim 2
Independent Claim
157 words
A METHOD FOR DETERMINING PHYSICAL CHARACTERISTICS OF A COATING MATERIAL DURING TRANSFORMATION OF SAID MATERIAL FROM A LIQUID STATE TO A SOLID STATE COMPRISING APPLYING A FILM OF SAID MATERIAL IN LIQUID STATE TO A SUBSTANTIALLY FLAT SURFACE, DIRECTING A LIGHT BEAM TO SAID FILM OF SAID MATERIAL AT AN ANGEL FROM A LINE NORMAL TO SAID FILM, SAID ANGLE BEING LESS THAN 90* BUT MORE THAN 15*, ARRANGING AND DISPOSING A PHOTONIC SIGNAL GENERATOR MEANS IN THE PATH OF SAID LIGHT BEAM AT A POINT SPECULARLY OPPOSITE THE SOURCE OF SAID LIGHT BEAM TO SENSE LIGHT REFLECTED FROM SAID FILM AND TO DEVELOP A FIRST SIGNAL PROPORTIONAL TO THE INTENSITY OF LIGHT SENSED, CONCURRENTLY HEATING SAID FILM AT A CONTROLLED HEATING RATE, SENSING THE AMOUNT DOF APPLIED HEAT AND DEVELOPING A SECOND SIGNAL PROPORTIONAL TO THE AMOUNT OF HEAT SENSED AND RECORDING, A S COFUNCTIONS OF TIME, THE AMPLITUDES OF SAID FIRST AND SAID SECOND SIGNALS.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |