US2915414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper coating process
Assignee: Individual
•
Filing: 1957-06-05
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Granted: 1959-12-01
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Expires: 1977-06-05
Abstract
No abstract record available.
Inventors
- 👤 Henry H Hilemn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:48
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/06; C03C17/10; C23; C23C; C23C18/00; C23C18/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE PROCESS OF DEPOSITING COPPER ON A SURFACE WHICH COMPRISES DESCALING FINELY DIVIDED IRON PARTICLES WITH A DILUTE ACID, REMOVING THE ACID AND IMMERSING SAID PARTICLES IN SUFFICIENT SLIGHTLY ALKALINE MIXTURE OF GLYCERIN AND ALCOHOL TO COMPLETELY COVER THEPARTICLES, ADDING WATER TO SAID GLYCERIN ALCOHOL SOLUTION TO FORM A SUSPENSION OF SAID PARTICLES IN A DILUTE AQUEOUS GLYCERIN ALCOHOL SOLUTION, APPLYING SAID SUSPENSION TO SAID SURFACE, SIMULTANEOUSLY APPLYING TO SAID SURFACE A COPPER SULFATE SOLUTION AND CAUSING SAID SUSPENSION AND SAID LAST SOLUTION TO INTERMINGLE FOR THEREBY EFFECTING REDUCTION AND DEPOSITION OF COPPER FROM SAID COPPER SULFATE SOLUTION ON TO SAID SURFACE.
Claim 2
Dependent Claim
102 words
THE PROCESS OF DEPOSITING COPPER ON A SURFACE WHICH COMPRISES DESCALING FINELY DIVIDED IRON PARTICLES WITH A DILUTE ACID, REMOVING THE ACID AND IMMERSING SAID PARTICLES IN SUFFICIENT SLIGHTLY ALKALINE MIXTURE OF GLYCERIN AND ALCOHOL TO COMPLETELY COVER THEPARTICLES, ADDING WATER TO SAID GLYCERIN ALCOHOL SOLUTION TO FORM A SUSPENSION OF SAID PARTICLES IN A DILUTE AQUEOUS GLYCERIN ALCOHOL SOLUTION, APPLYING SAID SUSPENSION TO SAID SURFACE, SIMULTANEOUSLY APPLYING TO SAID SURFACE A COPPER SULFATE SOLUTION AND CAUSING SAID SUSPENSION AND SAID LAST SOLUTION TO INTERMINGLE FOR THEREBY EFFECTING REDUCTION AND DEPOSITION OF COPPER FROM SAID COPPER SULFATE SOLUTION ON TO SAID 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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |