US3516185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidic-thermochromic display device
Assignee: National Aeronautics and Space Administration
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Filing: 1968-07-01
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Granted: 1970-06-23
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Expires: 1988-07-01
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Hilborn
- 👤 Daniel Grafstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:05
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/007; G; G08; G08B; G08B5/00; G08B5/06; G09; G09F; G09F13/00; G09F13/24; G09F9/00; G09F9/30; G09F9/37; G09F9/377
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3219993A
Cited
US3267455A
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US3225470A
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US3323241A
Cited
US3354565A
Cited
US3405464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |