Patent US2224902A successfully refreshed from Google Patents.
US2224902A
Expired / Lapsed
US
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Electrical terminal and switchboard terminal block
Assignee: Western Union Telegraph Co
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Filing: 1937-06-18
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Granted: 1940-12-17
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Expires: 1957-06-18
Abstract
No abstract record available.
Inventors
- 👤 Currie Frank Leslie
- 👤 Lewis H Rovere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:50
CPC Classifications
H; H04; H04Q; H04Q1/00; H04Q1/02; H04Q1/14; H04Q1/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-12-17 | 1944-06-17 | 1944-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-17 | 1948-06-17 | 1948-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-17 | 1952-06-17 | 1952-12-17 | $7700.00 | Window Closed / Lapsed |