US3983074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic binder for polyconductor powders
Assignee: TE Connectivity Corp
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Filing: 1974-06-14
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Granted: 1976-09-28
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Expires: 1994-06-14
Abstract
Abstract An article suitable as a circuit element is formed by admixing vanadium dioxide or doped vanadium dioxide with a binder of vanadium pentoxide and phosphorous pentoxide then heating and pressing the admixture into a shape.
Inventors
- 👤 David Kahn
- 👤 Raymond James Geckle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:05
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/30; H01B; H01B1/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
As an article of manufacture, a vanadium dioxide or doped vanadium dioxide in a ratio of 5 to 50 percent, and as a binder therewith, vanadium pentoxide and phosphorus pentoxide in admixture from 85% to about 50 percent of vanadium pentoxide on a mole basis, reminder phosphorus pentoxide, said binder intimately and strongly adhering to vanadium dioxide and said binder having voltage threshold for switching which
Claim 2
Dependent Claim
66 words
As an article of manufacture, a vanadium dioxide or doped vanadium dioxide in a ratio of 5 to 50 percent, and as a binder therewith, vanadium pentoxide and phosphorus pentoxide in admixture from 85% to about 50 percent of vanadium pentoxide on a mole basis, reminder phosphorus pentoxide, said binder intimately and strongly adhering to vanadium dioxide and said binder having voltage threshold for switching which
Claim 3
Dependent Claim
24 words
The article as defined in claim 1 and wherein the binder is 80 to 50 percent vanadium pentoxide, reminder phosphorous pentoxide on mole basis.
Claim 4
Dependent Claim
21 words
The article as defined in claim 1 and wherein the amount of vanadium pentoxide in the binder is 85 mole percent.
References Cited (Backward Citations)
GB744947A
Cited
US3520831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |