Patent US1050694A successfully refreshed from Google Patents.
US1050694A
Expired / Lapsed
US
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Electrical measuring instrument.
Assignee: ROLLER-SMITH Co
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Filing: 1907-07-15
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Granted: 1913-01-14
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Expires: 1927-07-15
Abstract
No abstract record available.
Inventors
- 👤 Frank W Roller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:09
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/20; G01R1/203
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) | 1916-01-14 | 1916-07-15 | 1917-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-01-14 | 1920-07-15 | 1921-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-01-14 | 1924-07-15 | 1925-01-14 | $7700.00 | Window Closed / Lapsed |