US2719797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platinizing tantalum
Assignee: Baker and Co Inc
•
Filing: 1950-05-23
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Granted: 1955-10-04
•
Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 Edgar F Rosenblatt
- 👤 Johann G Cohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:44
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/48; C25D5/50; C23; C23F; C23F13/00; C23F13/02; H; H01; H01J; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/0022; Y; Y10; Y10S; Y10S205/00; Y10S205/917; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10S428/9335; Y10S428/934; Y10S428/936; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12819; Y10T428/12861; Y10T428/12875
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A METHOD OF PROVIDING AN ADHERENT COATING OF PLATINUM METAL ON A BASE OF MATERIAL OF THE GROUP CONSISTING OF TANTALUM AND COLUBIUM, COMPRISING THE SEQUENTIAL MANUFACTURING STEPS OF DEPOSITING A THIN CONTINUOUS LAYER OF PLATINUM METAL ON SAID BASE AND HEATING SAID LAYER AND SAID BASE IN PROXIMITY THERETO UNDER INERT CONDITIONS AT AN ELEVATED TEMPERATURE BELOW THE MELTING POINT OF SAID PLATINUM METAL AND SAID BASE MATERIAL AND WITHIN THE RANGE OF ABOUT 800* C. TO ABOUT 1400* C. TO INTER-DIFFUSE SAID METALS AT THE BOUNDARY THEROF, WHEREBY SAID PLATINUM METAL LAYER BECOMES BONDED TO SAID MATERIAL ON ITS OUTER SURFACE AND IS SEPARATED FROM THE BASE BY AN INTERLAYER OF AN ALLOY OF THE PLATINUM WITH THE BASE METAL.
Claim 2
Independent Claim
122 words
A METHOD OF PROVIDING AN ADHERENT COATING OF PLATINUM METAL ON A BASE OF MATERIAL OF THE GROUP CONSISTING OF TANTALUM AND COLUBIUM, COMPRISING THE SEQUENTIAL MANUFACTURING STEPS OF DEPOSITING A THIN CONTINUOUS LAYER OF PLATINUM METAL ON SAID BASE AND HEATING SAID LAYER AND SAID BASE IN PROXIMITY THERETO UNDER INERT CONDITIONS AT AN ELEVATED TEMPERATURE BELOW THE MELTING POINT OF SAID PLATINUM METAL AND SAID BASE MATERIAL AND WITHIN THE RANGE OF ABOUT 800* C. TO ABOUT 1400* C. TO INTER-DIFFUSE SAID METALS AT THE BOUNDARY THEROF, WHEREBY SAID PLATINUM METAL LAYER BECOMES BONDED TO SAID MATERIAL ON ITS OUTER SURFACE AND IS SEPARATED FROM THE BASE BY AN INTERLAYER OF AN ALLOY OF THE PLATINUM WITH THE BASE METAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |