Patent US2589076A successfully refreshed from Google Patents.
US2589076A
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US
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Folded delay line
Assignee: Collins Radio Co
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Filing: 1950-06-09
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Granted: 1952-03-11
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Expires: 1970-06-09
Abstract
No abstract record available.
Inventors
- 👤 Noel W Hancock
- 👤 David O Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:13
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/30; H03H7/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |