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US3378692A
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Digital reference source
Assignee: Boeing North American Inc
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Filing: 1964-09-08
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Granted: 1968-04-16
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Charles E Lenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:54
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3307092A
Cited
US2755440A
Cited
US2910586A
Cited
US3172042A
Cited
US3312885A
Cited
US3297952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |