Patent US3372890A successfully refreshed from Google Patents.
US3372890A
Expired / Lapsed
US
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Data processor for circular scanning tracking system
Assignee: Lockheed Martin Corp
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Filing: 1966-02-04
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Granted: 1968-03-12
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Expires: 1986-02-04
Abstract
No abstract record available.
Inventors
- 👤 James R Bogard
- 👤 Roger A Gaskill
- 👤 Harmon George Lamar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:01
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22; F41G7/2226; F41G7/2213; F41G7/2253; F41G7/2273; F41G7/2293; G; G06; G06G; G06G7/00; G06G7/48; G06G7/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2884540A
Cited
US3143646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |