Patent US2663612A successfully refreshed from Google Patents.
US654103A
Expired / Lapsed
US
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Attachment for instruments of precision.
Assignee: Siemens and Halske Electric Company of America
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Filing: 1899-05-15
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Granted: 1900-07-17
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Expires: 1919-05-15
Abstract
No abstract record available.
Inventors
- 👤 Carl Otto Franz Schrottke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:21
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/02; G01R1/10
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) | 1903-07-17 | 1904-01-16 | 1904-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-07-17 | 1908-01-16 | 1908-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-07-17 | 1912-01-16 | 1912-07-17 | $7700.00 | Window Closed / Lapsed |