US2537221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Meter with adjustable magnetic
Assignee: —
•
Filing: —
•
Granted: 1951-01-09
•
Expires: 1968-01-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:42
CPC Classifications
G; G01; G01R; G01R5/00; G01R5/02; G01R5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US591241A
Cited
GB486695A
Cited
FR742804A
Cited
US2183934A
Cited
US796061A
Cited
US1165745A
Cited
US1125711A
Cited
US2183685A
Cited
US2318359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |