US2801919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic method for making templates
Assignee: Screen Engineering Co
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Filing: 1953-02-20
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Granted: 1957-08-06
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Expires: 1973-02-20
Abstract
No abstract record available.
Inventors
- 👤 Eichorn Adrian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:33
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/68; G03C; G03C1/00; G03C1/52; G03C1/64; G03C1/76; G03C1/77; Y; Y10; Y10S; Y10S430/00; Y10S430/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF APPLYING A PRECISION IMAGE TO SHEET METAL COMPRISING THE STEPS OF COATING A SURFACE OF SAID SHEET METAL WITH A SOLUTION INCLUDING A LIGHT SENSITIVE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF FERRIC SALTS AND DIAZO COMPOUNDS, EXPOSING SAID SURFACE TO ACTINIC LIGHT THROUGHT A DIMENSIONALLY STABLE LIGHT TRANSMITTING FLEXIBLE SHEET METERIAL HAVING GLASS FABRIC BASE IMPREGNATED WITH A POLYESTER RESIN WHICH IS THE POLYMERIZATION PRODUCT OF A COMPOUND HAVING A SINGLE TERMINAL ETHYLENC GROUP WITH THE REACTION PRODUCT OF A DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF MALEIC, FUMARIC, ITACONIC AND CITRACONIC ACIDS AND A DIHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, TRIETHYLENE GLYCOL, TRIMETHYLENE GLYOCL, MONOETHYLIN, PROPYLENE GLYCOL AND CARRYING A PRECISE IMAGE AND DEVELOPING THE IMAGE ON THE SHEET METAL SURFACE.
Claim 2
Independent Claim
133 words
THE METHOD OF APPLYING A PRECISION IMAGE TO SHEET METAL COMPRISING THE STEPS OF COATING A SURFACE OF SAID SHEET METAL WITH A SOLUTION INCLUDING A LIGHT SENSITIVE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF FERRIC SALTS AND DIAZO COMPOUNDS, EXPOSING SAID SURFACE TO ACTINIC LIGHT THROUGHT A DIMENSIONALLY STABLE LIGHT TRANSMITTING FLEXIBLE SHEET METERIAL HAVING GLASS FABRIC BASE IMPREGNATED WITH A POLYESTER RESIN WHICH IS THE POLYMERIZATION PRODUCT OF A COMPOUND HAVING A SINGLE TERMINAL ETHYLENC GROUP WITH THE REACTION PRODUCT OF A DICARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF MALEIC, FUMARIC, ITACONIC AND CITRACONIC ACIDS AND A DIHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, TRIETHYLENE GLYCOL, TRIMETHYLENE GLYOCL, MONOETHYLIN, PROPYLENE GLYCOL AND CARRYING A PRECISE IMAGE AND DEVELOPING THE IMAGE ON THE SHEET METAL SURFACE.
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) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |