Patent US2580498A successfully refreshed from Google Patents.
US2580498A
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Electrooptical pulse generator
Assignee: Northrop Grumman Corp
•
Filing: 1948-05-17
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Granted: 1952-01-01
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Expires: 1968-05-17
Abstract
No abstract record available.
Inventors
- 👤 Ackerlind Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:41
CPC Classifications
G; G01; G01B; G01B9/00; G01B9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US908725A
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US1709762A
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US1951523A
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US1962208A
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US2142378A
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US2410502A
Cited
US2312888A
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US2418786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |