US2546093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field strength meter
Assignee: Weston Electric Instrument Corp
•
Filing: 1946-10-30
•
Granted: 1951-03-20
•
Expires: 1966-10-30
Abstract
No abstract record available.
Inventors
- 👤 Roswell W Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:04
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/08; G01R29/0864; G01R29/0871
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2088584A
Cited
US2134589A
Cited
US2103179A
Cited
GB522276A
Cited
US2323996A
Cited
US2375591A
Cited
US2468125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |