US2921264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protection system for meters or the like
Assignee: SUNDT ENGINEERING Co
•
Filing: 1953-01-27
•
Granted: 1960-01-12
•
Expires: 1973-01-27
Abstract
No abstract record available.
Inventors
- 👤 Edward V Sundt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/36; H; H02; H02H; H02H9/00; H02H9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2541322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |