US2931567A
Expired / Lapsed
US
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Apparatus for controlling an analog computer
Assignee: Gulf Research and Development Co
•
Filing: 1956-01-24
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Granted: 1960-04-05
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Expires: 1976-01-24
Abstract
No abstract record available.
Inventors
- 👤 Elton M Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:02
CPC Classifications
G; G06; G06K; G06K19/00; B; B23; B23B; B23B39/00; B23B39/04; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/06; G06G; G06G7/00; G06G7/04; G06G7/06; G06K11/00; G06K7/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |