Patent US2565486A successfully refreshed from Google Patents.
US2565486A
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Pulse duration separation system
Assignee: International Standard Electric Corp
•
Filing: 1947-11-10
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Granted: 1951-08-28
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Expires: 1967-11-10
Abstract
No abstract record available.
Inventors
- 👤 Feinstein Joseph
- 👤 Irwin H Franzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:13
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/08; H04N5/10; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2204055A
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US2224677A
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US2361766A
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US2415870A
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US2418133A
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US2427500A
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US2462860A
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US2439321A
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US2236134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |