US3392381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog-to-digital encoder apparatus and system employing same
Assignee: Calspan Corp
•
Filing: 1964-09-24
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Granted: 1968-07-09
•
Expires: 1984-09-24
Abstract
No abstract record available.
Inventors
- 👤 Iii Charles W Hargens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:04
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/001; G; G06; G06K; G06K7/00; G06K7/02; H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |