US776491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature-compensating device for electrical measuring instruments.
Assignee: Individual
•
Filing: 1904-02-23
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Granted: 1904-12-06
•
Expires: 1924-02-23
Abstract
No abstract record available.
Inventors
- 👤 William H Bristol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:26
CPC Classifications
G; G01; G01R; G01R11/00; G01R11/02; G01R11/17; G01R11/18; G01R11/185
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) | 1907-12-06 | 1908-06-06 | 1908-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-12-06 | 1912-06-06 | 1912-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-12-06 | 1916-06-06 | 1916-12-06 | $7700.00 | Window Closed / Lapsed |