US2776915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing silver layers
Assignee: Hartford National Bank and Trust Co
•
Filing: 1953-08-28
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Granted: 1957-01-08
•
Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 Gerard Willem Van Oosterhout
- 👤 Bol Arie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:26
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF APPLYING A LAYER OF SILVER TO AN OBJECT COMPRISING THE STEPS, HEATING SAID OBJECT TO A TEMPERATURE OF ABOUT 150*C. TO 300*C., AND APPLYING TO SELECTED SURFACE PORTIONS OF SAID OBJECT ONLY A SILVER SALT OF A FATTY ACID SELECTED FROM THE GROUP CONSISTING OF LACTIC AND BUTYRIC ACID WHILE SAID OBJECT IS MAINTAINED AT SAID TEMPERATURE TO FORM A CONDUCTIVE SILVER LAYER AT THOSE SURFACE PORTIONS.
Claim 2
Independent Claim
70 words
A METHOD OF APPLYING A LAYER OF SILVER TO AN OBJECT COMPRISING THE STEPS, HEATING SAID OBJECT TO A TEMPERATURE OF ABOUT 150*C. TO 300*C., AND APPLYING TO SELECTED SURFACE PORTIONS OF SAID OBJECT ONLY A SILVER SALT OF A FATTY ACID SELECTED FROM THE GROUP CONSISTING OF LACTIC AND BUTYRIC ACID WHILE SAID OBJECT IS MAINTAINED AT SAID TEMPERATURE TO FORM A CONDUCTIVE SILVER LAYER AT THOSE SURFACE PORTIONS.
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) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |