US3491000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing vanadium dioxide thin films
Assignee: AT&T Inc
•
Filing: 1968-11-18
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Granted: 1970-01-20
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Expires: 1988-11-18
Abstract
No abstract record available.
Inventors
- 👤 Ellis N Fuls
- 👤 Donald H Hensler
- 👤 Michael H Isbansky
- 👤 Alexander R Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:08
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/08; C23C14/02; C23C14/024; C23C14/14; C23C14/58; C23C14/5806; C23C14/5846; C23C14/5853; H; H01; H01B; H01B1/00; H01C; H01C7/00; H01C7/04; H01C7/042; H01C7/043; H01C7/047; Y; Y10; Y10S; Y10S148/00; Y10S148/117; Y10S148/118
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3258413A
Cited
US3294653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |