US2944215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suppressed zero frequency meter circuit
Assignee: General Electric Co
•
Filing: 1958-04-25
•
Granted: 1960-07-05
•
Expires: 1978-04-25
Abstract
No abstract record available.
Inventors
- 👤 Almon J Corson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:21
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2087652A
Cited
US2290327A
Cited
DE843444C
Cited
US2485577A
Cited
GB616325A
Cited
US2594091A
Cited
DE813861C
Cited
GB712527A
Cited
GB727434A
Cited
US2693572A
Cited
US2854651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |