US2575720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument balance mechanism
Assignee: Westinghouse Electric Corp
•
Filing: 1947-04-19
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Granted: 1951-11-20
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Expires: 1967-04-19
Abstract
No abstract record available.
Inventors
- 👤 Bernard E Lenehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:43
CPC Classifications
G; G01; G01D; G01D11/00; G01D11/08; F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/048; G01R; G01R1/00; G01R1/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18752; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1029042A
Cited
US1114971A
Cited
US1154979A
Cited
FR638826A
Cited
US1801778A
Cited
US2294054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |