US3179575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing silver layer on non-metallic electrically non-conductive support
Assignee: US Philips Corp
•
Filing: 1960-07-11
•
Granted: 1965-04-20
•
Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Dippel Cornelis Johannes
- 👤 Johnker Hendrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:05
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/181; G; G03; G03C; G03C5/00; G03C5/58; H01; H01B; H01B1/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/927; Y10S428/929; Y10S428/9335; Y10S428/934; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A METHOD OF PRODUCING A PERMANENTLY ADHERING EXTERNAL, ELECTRICALLY CONDUCTIVE SILVER LAYER ON A NON-METALLIC, ELECTRICALLY NON-CONDUCTIVE SUPPORT, AT LEAST THE SURFACE OF SAID SUPPORT BEING HYDROPHILLIC, COMPRISING THE STEPS OF APPLYING TO SAID SUPPORT A MERCUROUS COMPOUND, WATER AND A COMPOUND CAPABLE OF CONVERTING SAID MERCUROUS COMPOUND IN THE PRESENCE OF WATER TO FREE METALLIC MERCURY THEREBY FORMING A BARELY VISIBLE, AT LEAST PARTIALLY EXTERNAL GERM LAYER OF MERCURY METAL ON SAID SUPPORT, SAID COMPOUND CAPABLE OF CONVERTING SAID MERECUROUS COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS THAT REDUCE MERCUROUS COMPOUNDS TO FREE MERCURY METAL AND COMPOUNDS THAT FORM FREE MERCURY METAL FROM MERCUROUS COMPOUNDS BY A DISPROPORTIONATING REACTION, SAID MERCURY GERM LAYER EXTENDING AT LEAST PARTIALLY INTO THE HYDROPHILIC PORTION OF SAID SUPPORT, AND THEN TREATING SAID MERCURY GERM LAYER ON SAID SUPPORT WITH A SILVER METAL INTENSIFYING BATH, SAID BATH COMPRISING AN AQUEOUS SOLUTION OF A WATER SOLUBLE SILVER COMPOUND AND A WATER SOLUBLE REDUCING AGENT FOR SAID SILVER COMPOUND TO THEREBY CAUSE A VISIBLE, PERMANENTLY ADHERING, ELECTRICALLY CONDUCTING SILVER LAYER TO BE DEPOSITED ON SAID MERCURY GERM LAYER ON SAID SUPPORT.
Claim 2
Independent Claim
187 words
A METHOD OF PRODUCING A PERMANENTLY ADHERING EXTERNAL, ELECTRICALLY CONDUCTIVE SILVER LAYER ON A NON-METALLIC, ELECTRICALLY NON-CONDUCTIVE SUPPORT, AT LEAST THE SURFACE OF SAID SUPPORT BEING HYDROPHILLIC, COMPRISING THE STEPS OF APPLYING TO SAID SUPPORT A MERCUROUS COMPOUND, WATER AND A COMPOUND CAPABLE OF CONVERTING SAID MERCUROUS COMPOUND IN THE PRESENCE OF WATER TO FREE METALLIC MERCURY THEREBY FORMING A BARELY VISIBLE, AT LEAST PARTIALLY EXTERNAL GERM LAYER OF MERCURY METAL ON SAID SUPPORT, SAID COMPOUND CAPABLE OF CONVERTING SAID MERECUROUS COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS THAT REDUCE MERCUROUS COMPOUNDS TO FREE MERCURY METAL AND COMPOUNDS THAT FORM FREE MERCURY METAL FROM MERCUROUS COMPOUNDS BY A DISPROPORTIONATING REACTION, SAID MERCURY GERM LAYER EXTENDING AT LEAST PARTIALLY INTO THE HYDROPHILIC PORTION OF SAID SUPPORT, AND THEN TREATING SAID MERCURY GERM LAYER ON SAID SUPPORT WITH A SILVER METAL INTENSIFYING BATH, SAID BATH COMPRISING AN AQUEOUS SOLUTION OF A WATER SOLUBLE SILVER COMPOUND AND A WATER SOLUBLE REDUCING AGENT FOR SAID SILVER COMPOUND TO THEREBY CAUSE A VISIBLE, PERMANENTLY ADHERING, ELECTRICALLY CONDUCTING SILVER LAYER TO BE DEPOSITED ON SAID MERCURY GERM LAYER ON SAID SUPPORT.
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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |