US2985599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platinum carbon rods for electron microscope technique
Assignee: Metropolitan Vickers Electrical Co Ltd
•
Filing: 1959-08-17
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Granted: 1961-05-23
•
Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Bradley David Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/2806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A CARBONACEOUS ELECTRODE CONSISTING OF A COMPRESSED MIXTURE OF FINELY DIVIDED PLATINUM AND CARBON IN WHICH THE PROPORTION OF PLATINUM TO CARBON RANGES FROM 3:1 TO 5:1 BY WEIGHT.
Claim 2
Dependent Claim
29 words
A CARBONACEOUS ELECTRODE CONSISTING OF A COMPRESSED MIXTURE OF FINELY DIVIDED PLATINUM AND CARBON IN WHICH THE PROPORTION OF PLATINUM TO CARBON RANGES FROM 3:1 TO 5:1 BY WEIGHT.
References Cited (Backward Citations)
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US2448685A
Cited
US2640787A
Cited
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Cited
US2616842A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |