US2878418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature filamentary numerical display
Assignee: Unisys Corp
•
Filing: 1958-06-04
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Granted: 1959-03-17
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Expires: 1978-06-04
Abstract
No abstract record available.
Inventors
- 👤 Alan R Garfinkel
- 👤 Biagio A Spinelli
- 👤 Munt Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:20
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/307; H; H01; H01K; H01K7/00; H01K7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US573088A
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US2735038A
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US740585A
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US1156967A
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US1428424A
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GB210289A
Cited
US1819690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |