US840569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical measuring instrument.
Assignee: INTERNATIONAL ELECTRIC METER Co
•
Filing: 1906-09-25
•
Granted: 1907-01-08
•
Expires: 1926-09-25
Abstract
No abstract record available.
Inventors
- 👤 John M Lea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:05
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/30
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) | 1910-01-07 | 1910-07-09 | 1911-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-01-07 | 1914-07-09 | 1915-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-01-07 | 1918-07-09 | 1919-01-08 | $7700.00 | Window Closed / Lapsed |