US2851598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for gating in response to time duration
Assignee: North American Aviation Corp
•
Filing: 1955-12-15
•
Granted: 1958-09-09
•
Expires: 1975-12-15
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Ostergren
- 👤 Clinton O Jorgensen
- 👤 Wayne D Moyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:38
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/02; G01R29/027; G01R29/0273
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2211942A
Cited
US2636119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |