US2516022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relaying system
Assignee: Westinghouse Electric Corp
•
Filing: 1945-08-18
•
Granted: 1950-07-18
•
Expires: 1965-08-18
Abstract
No abstract record available.
Inventors
- 👤 William K Sonnemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:47
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/26; H02H3/32; H02H3/34; H02H3/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2183646A
Cited
US1806392A
Cited
US1865430A
Cited
US2283711A
Cited
US2315470A
Cited
US2456976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |