Patent US3782404A successfully refreshed from Google Patents.
Patent US2711389A successfully refreshed from Google Patents.
US2711389A
Expired / Lapsed
US
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Method of applying adherent electroplates to zirconium surfaces
Assignee: Individual
•
Filing: 1953-05-15
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Granted: 1955-06-21
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Expires: 1973-05-15
Abstract
No abstract record available.
Inventors
- 👤 John G Beach
- 👤 William C Schickner
- 👤 Charles L Faust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:45
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/10; C23F1/14; C23F1/16; C23F1/26; C23C; C23C10/00; C23C10/28; C25; C25D; C25D5/00; C25D5/34; C25D5/38; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799; Y10T428/12861; Y10T428/12931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A ZIRCONIUM MATERIAL ETCHANT COMPRISING AN AQUEOUS SOLUTION CONTAINING 0.44 TO 1.32 MOLES PER LITER AMMONIUM FLUORIDE AND 0.44 TO 0.88 MOLES PER LITER HYDROFLUORIC ACID, THE AMMONIUM FLUORIDE TO HYDROFLUORIC ACID RATIO LYING BETWEEN 1 AND 3, INCLUSIVE, AND 0.25 TO 1 PER CENT OF AN ALIPHATIC AMINE HAVING THE FORMULA
Claim 2
Dependent Claim
52 words
A ZIRCONIUM MATERIAL ETCHANT COMPRISING AN AQUEOUS SOLUTION CONTAINING 0.44 TO 1.32 MOLES PER LITER AMMONIUM FLUORIDE AND 0.44 TO 0.88 MOLES PER LITER HYDROFLUORIC ACID, THE AMMONIUM FLUORIDE TO HYDROFLUORIC ACID RATIO LYING BETWEEN 1 AND 3, INCLUSIVE, AND 0.25 TO 1 PER CENT OF AN ALIPHATIC AMINE HAVING THE FORMULA
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) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |