US2486641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring and control apparatus
Assignee: Weston Electric Instrument Corp
•
Filing: 1944-10-14
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Granted: 1949-11-01
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Expires: 1964-10-14
Abstract
No abstract record available.
Inventors
- 👤 Roswell W Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:01
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/20; G; G05; G05B; G05B1/00; G05B1/01; G05B1/02; G05B1/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21659E
Cited
DE487016C
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US1873926A
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US1915804A
Cited
US2320881A
Cited
US2368701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |