Patent US2084490A successfully refreshed from Google Patents.
Patent US2431992A successfully refreshed from Google Patents.
US2431992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensatory suppressed pointer adjustment for electric meters
Assignee: KNICKERBOCKER DEV CORP
•
Filing: 1943-08-05
•
Granted: 1947-12-02
•
Expires: 1963-08-05
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Dalzell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:46
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/4285; G; G01; G01R; G01R31/00; G01R31/36; G01R31/3644; G01R31/3646; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1193096A
Cited
US1435259A
Cited
US1586445A
Cited
US1709851A
Cited
US1753043A
Cited
GB306818A
Cited
US1904096A
Cited
US1952072A
Cited
US2091024A
Cited
US2225051A
Cited
US2267826A
Cited
US2352499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |