US3104167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and solution for selectively stripping electroless nickel from a substrate
Assignee: Lanteris Space LLC
•
Filing: 1960-02-11
•
Granted: 1963-09-17
•
Expires: 1980-02-11
Abstract
No abstract record available.
Inventors
- 👤 Jerome E Cotteta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:49
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/40; H10P14/46; C; C23; C23F; C23F1/00; C23F1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A SOLUTION FOR SELECTIVELY STRIPPING ELECTROLESS NICKEL CONSISTING ESSENTIALLY OF NICKEL AND BETWEEN ABOUT 6 AND ABOUT 13 PERCENT BY WEIGHT OF PHOSPHOURS FROM A SUBSTRATE COMPOSED OF AT LEAST ONE SUBSTANCES SELECTED FROM THE GROUP CONSISTING OF COPPER, NICKEL, STEEL, DUMET AND KOVAR,SAID SOLUTION CONSISTING ESSENTIALLY OF ABOUT 10 PARTS BY VOLUME OF SULFURIC ACID CONTAINING AT LEAST ABOUT 93 PERCENT BY WEIGHT OF H2SO4, ABOUT 10 PARTS BY VOLUME OF PHOSPHORIC ACID CONTAINING AT LEAST ABOUT 85 PERCENT BY WEIGHT OF H3PO4, ABOUT 2.5 TO ABOUT 5 PARTS BY VOLUME OF NITRIC ACID CONTAINING AT LEAST ABOUT 67 PERCENT BY WEIGHT OF HNO3 AND ABOUT 3 TO ABOUT 6 PERCENT BY VOLUME OF HYDROFLUORIC ACID CONTAINING AT LEAST 47 PERCENT BY WEIGHT OF HF.
Claim 2
Dependent Claim
126 words
A SOLUTION FOR SELECTIVELY STRIPPING ELECTROLESS NICKEL CONSISTING ESSENTIALLY OF NICKEL AND BETWEEN ABOUT 6 AND ABOUT 13 PERCENT BY WEIGHT OF PHOSPHOURS FROM A SUBSTRATE COMPOSED OF AT LEAST ONE SUBSTANCES SELECTED FROM THE GROUP CONSISTING OF COPPER, NICKEL, STEEL, DUMET AND KOVAR,SAID SOLUTION CONSISTING ESSENTIALLY OF ABOUT 10 PARTS BY VOLUME OF SULFURIC ACID CONTAINING AT LEAST ABOUT 93 PERCENT BY WEIGHT OF H2SO4, ABOUT 10 PARTS BY VOLUME OF PHOSPHORIC ACID CONTAINING AT LEAST ABOUT 85 PERCENT BY WEIGHT OF H3PO4, ABOUT 2.5 TO ABOUT 5 PARTS BY VOLUME OF NITRIC ACID CONTAINING AT LEAST ABOUT 67 PERCENT BY WEIGHT OF HNO3 AND ABOUT 3 TO ABOUT 6 PERCENT BY VOLUME OF HYDROFLUORIC ACID CONTAINING AT LEAST 47 PERCENT BY WEIGHT OF HF.
References Cited (Backward Citations)
US1765331A
Cited
GB459130A
Cited
US2200486A
Cited
US2348359A
Cited
US2337062A
Cited
US2353786A
Cited
US2808542A
Cited
US2954289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |