US1555066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split-core transformer
Assignee: LINCOLN METER Co Ltd
•
Filing: 1922-09-25
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Granted: 1925-09-29
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Expires: 1942-09-25
Abstract
No abstract record available.
Inventors
- 👤 Lines Stanley Llandaff Burnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:18
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H01F38/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-09-28 | 1929-03-30 | 1929-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-09-28 | 1933-03-30 | 1933-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-09-28 | 1937-03-30 | 1937-09-29 | $7700.00 | Window Closed / Lapsed |