US2501356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attraction-repulsion moving iron vane instrument
Assignee: Westinghouse Electric Corp
•
Filing: 1943-12-22
•
Granted: 1950-03-21
•
Expires: 1963-12-22
Abstract
No abstract record available.
Inventors
- 👤 Herbert T Rights
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:41
CPC Classifications
G; G01; G01R; G01R5/00; G01R5/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1501189A
Cited
GB290738A
Cited
GB296749A
Cited
US1835658A
Cited
US2157947A
Cited
US2183685A
Cited
US2119015A
Cited
US2183566A
Cited
US2237142A
Cited
US2260026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |