US3444528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Redundant computer systems
Assignee: Lockheed Martin Corp
•
Filing: 1966-11-17
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Granted: 1969-05-13
•
Expires: 1986-11-17
Abstract
No abstract record available.
Inventors
- 👤 Gary E Lovell
- 👤 Tom E Conover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/16; G06F11/1629; G06F11/1654; G06F11/1633; G06F11/165; G06F11/18; G06F11/181; G06F11/182; G06F11/20; G06F11/202; G06F11/2023; G06F11/2033; G06F15/00; G06F15/16; G06F11/187; G06F11/188; G06F11/2038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2950464A
Cited
US3309672A
Cited
US3303474A
Cited
US3252149A
Cited
US3348197A
Cited
US3377623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |