US2985181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic computer system
Assignee: Individual
•
Filing: 1955-05-13
•
Granted: 1961-05-23
•
Expires: 1975-05-13
Abstract
No abstract record available.
Inventors
- 👤 William O Nixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:52
CPC Classifications
G; G06; G06G; G06G5/00; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 0
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US2668416A
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US2778373A
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US2778372A
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |