Patent US2693022A successfully refreshed from Google Patents.
Patent US2452587A successfully refreshed from Google Patents.
US2452587A
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Network measuring apparatus
Assignee: Unisys Corp
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Filing: 1945-02-24
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Granted: 1948-11-02
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Expires: 1965-02-24
Abstract
No abstract record available.
Inventors
- 👤 Rawley D Mccoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/20; H03B5/22; G; G01; G01R; G01R27/00; G01R27/28; G01R27/32
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |