US2674544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a screen matrix
Assignee: Warner Bros Entertainment Inc
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Filing: 1951-04-03
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Granted: 1954-04-06
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Expires: 1971-04-03
Abstract
No abstract record available.
Inventors
- 👤 James A Gibbons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:11
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
THE METHOD OF CONSTRUCTION A MATRIX ON WHICH LIGHT SCREEN ARE FORMED, COMPRISING FORMING A LAYER OF A FURFURAL ALDEHYDE PLASTIC BY APPLYING A SOLUTION THEREOF TO A TOTATABLE MOISTURE RESISTANT BY CYCLINDRICAL SURFACE BY ROTATION OF SAID CYLINDRICAL SURFACE IN SAID SOLUTION OF FURFURAL PLASTIC, DRYING SAID LAYER, MAKING SAID FURFURAL PLASTIC LAYER TRULY CYLINDRICAL BY ROTATION THEREOF AGAINST A SMOOTHING ELEMENT MOVING PARALLEL WITH THE AXIS OF ROTATION OF SAID FURFURAL PLASTIC SURFACE, APPLYING A WATER CHECKING LAYER OF ETHYL CELLULOSE ON SAID FURFURAL PLASTIC SURFACE, APPLYING A LAYER OF POLYVINYL ALCOHOL, APPLYING A LAYER OF A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE, APPLYING A LAYER OF PLASTICIZED CELLULOSE ACETATE, FINALLY APPLYING A LAYER OF UNPLASTICIZED CELLULOSE ACETATE, ALL OF SAID LAYERS BEING APPLIED IN DIFFERENT NUMBERS OF COATS BY ROTATION OF THE BASE THROUGH RESPECTIVE SOLUTIONS OF SAID LAYERS, AND DRYING SAID RESPECTIVE COATS AND LAYERS AFTER EACH APPLICATION THEREOF.
Claim 2
Independent Claim
154 words
THE METHOD OF CONSTRUCTION A MATRIX ON WHICH LIGHT SCREEN ARE FORMED, COMPRISING FORMING A LAYER OF A FURFURAL ALDEHYDE PLASTIC BY APPLYING A SOLUTION THEREOF TO A TOTATABLE MOISTURE RESISTANT BY CYCLINDRICAL SURFACE BY ROTATION OF SAID CYLINDRICAL SURFACE IN SAID SOLUTION OF FURFURAL PLASTIC, DRYING SAID LAYER, MAKING SAID FURFURAL PLASTIC LAYER TRULY CYLINDRICAL BY ROTATION THEREOF AGAINST A SMOOTHING ELEMENT MOVING PARALLEL WITH THE AXIS OF ROTATION OF SAID FURFURAL PLASTIC SURFACE, APPLYING A WATER CHECKING LAYER OF ETHYL CELLULOSE ON SAID FURFURAL PLASTIC SURFACE, APPLYING A LAYER OF POLYVINYL ALCOHOL, APPLYING A LAYER OF A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE, APPLYING A LAYER OF PLASTICIZED CELLULOSE ACETATE, FINALLY APPLYING A LAYER OF UNPLASTICIZED CELLULOSE ACETATE, ALL OF SAID LAYERS BEING APPLIED IN DIFFERENT NUMBERS OF COATS BY ROTATION OF THE BASE THROUGH RESPECTIVE SOLUTIONS OF SAID LAYERS, AND DRYING SAID RESPECTIVE COATS AND LAYERS AFTER EACH APPLICATION THEREOF.
References Cited (Backward Citations)
US2480824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |