US2962364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for developing images and designs on metal
Assignee: Modern Engraving and Machine Co
•
Filing: 1958-08-15
•
Granted: 1960-11-29
•
Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 John M Cornish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:18
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/10; C23F1/14; C23F1/16; C23F1/20; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR FORMING ETCHED DESIGNS ON ALUMINUM METAL SURFACES WHICH COMPRISES CLEANING SAID METAL SURFACES, APPLYING A PRE-ETCH SOLUTION OF HYDROCHLORIC ACID SATURATED WITH SODIUM CHLORIDE, DRYING THE THUS-TREATED METAL SURFACE, DEPOSITING AN IMAGE-FORMING RESIST COATING ON SAID METAL SURFACE, REMOVING SAID COATING FROM THE AREA TO BE ETCHED, AND TREATING THE THUS COATED METAL SURFACE WITH AN ETCHING SOLUTION CONSISTING ESSENTIALLY OF IRON PERCHLORIDE CONTAINING HYDROCHLORIC ACID SATURATED WITH SODIUM CHLORIDE.
Claim 2
Dependent Claim
73 words
A PROCESS FOR FORMING ETCHED DESIGNS ON ALUMINUM METAL SURFACES WHICH COMPRISES CLEANING SAID METAL SURFACES, APPLYING A PRE-ETCH SOLUTION OF HYDROCHLORIC ACID SATURATED WITH SODIUM CHLORIDE, DRYING THE THUS-TREATED METAL SURFACE, DEPOSITING AN IMAGE-FORMING RESIST COATING ON SAID METAL SURFACE, REMOVING SAID COATING FROM THE AREA TO BE ETCHED, AND TREATING THE THUS COATED METAL SURFACE WITH AN ETCHING SOLUTION CONSISTING ESSENTIALLY OF IRON PERCHLORIDE CONTAINING HYDROCHLORIC ACID SATURATED WITH SODIUM CHLORIDE.
References Cited (Backward Citations)
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Cited
US2336846A
Cited
US2211400A
Cited
US2283170A
Cited
US2270712A
Cited
US2762694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |