US3285699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porosity test method
Assignee: TE Connectivity Corp
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Filing: 1964-05-07
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Granted: 1966-11-15
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Expires: 1984-05-07
Abstract
No abstract record available.
Inventors
- 👤 Dulski Theodore Joseph
- 👤 Holler Kermit Winston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:06
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF TESTING A PLATED ARTICLE FOR PLATING IMPERFECTIONS, SAID ARTICLE BEING OF A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND COPPER ALLOYS AND BEING PLATED WITH A LAYER OF NICKEL AND A LAYER OF METAL SELECTED FROM THE GROUP CONSISTING OF GOLD AND SILVER OVER SAID LAYER OF NICKEL, SAID METHOD COMPRISING THE STEPS OF CONTACTING SAID ARTICLE WITH DIMETHYLGLYOXIME VAPOR AND SUBSEQUENTLY CONTACTING SAID ARTICLE WITH AMMONIA WHEREBY COPPER AND NICKEL GLYOXIMATES ARE FORMED IN ANY IMPERFECTIONS IN SAID GOLD PLATING, AND SAID GLYOXIMATES ARE CONVERTED BY SAID AMMONIA TO COPPER AND NICKEL AMMONIUM GLYOXIMATES HAVING A CHARACTERISTIC COLOR.
Claim 2
Independent Claim
104 words
THE METHOD OF TESTING A PLATED ARTICLE FOR PLATING IMPERFECTIONS, SAID ARTICLE BEING OF A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND COPPER ALLOYS AND BEING PLATED WITH A LAYER OF NICKEL AND A LAYER OF METAL SELECTED FROM THE GROUP CONSISTING OF GOLD AND SILVER OVER SAID LAYER OF NICKEL, SAID METHOD COMPRISING THE STEPS OF CONTACTING SAID ARTICLE WITH DIMETHYLGLYOXIME VAPOR AND SUBSEQUENTLY CONTACTING SAID ARTICLE WITH AMMONIA WHEREBY COPPER AND NICKEL GLYOXIMATES ARE FORMED IN ANY IMPERFECTIONS IN SAID GOLD PLATING, AND SAID GLYOXIMATES ARE CONVERTED BY SAID AMMONIA TO COPPER AND NICKEL AMMONIUM GLYOXIMATES HAVING A CHARACTERISTIC COLOR.
References Cited (Backward Citations)
US1753301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |