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US3428922A
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Assignee: United States Department of the Army
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Filing: 1964-10-09
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Granted: 1969-02-18
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Expires: 1984-10-09
Abstract
No abstract record available.
Inventors
- 👤 George L Matthaei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:39
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/16; H01P1/162; H01P1/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2151118A
Cited
US3008102A
Cited
US3085213A
Cited
US3153767A
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US3184695A
Cited
US3221205A
Cited
US3259903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |