Patent US2122904A successfully refreshed from Google Patents.
US3464531A
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US
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Assignee: United States Department of the Army
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Filing: 1967-05-16
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Granted: 1969-09-02
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Expires: 1987-05-16
Abstract
No abstract record available.
Inventors
- 👤 Edward R Herr
- 👤 George E Sumrall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:32
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/16; H03; H03K; H03K17/00; H03K17/94; H03K17/96; H03K17/964; H03K17/965; H03K17/967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2032168A
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US2302081A
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US3076903A
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US3333122A
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US3364451A
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US3339104A
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US3353038A
Cited
US3366808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |