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US3521130A
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US
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Sequential operating system
Assignee: COSEN JAMES R
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Filing: 1968-03-13
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Granted: 1970-07-21
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Expires: 1988-03-13
Abstract
No abstract record available.
Inventors
- 👤 Wayne E Davis
- 👤 James R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:07
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07; G05B19/075; A; A01; A01G; A01G25/00; A01G25/16; A01G25/162; H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/73
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) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |