Patent US834998A successfully refreshed from Google Patents.
US834998A
Expired / Lapsed
US
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Electric-wave-form tracer.
Assignee: Individual
•
Filing: 1905-07-03
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Granted: 1906-11-06
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Expires: 1925-07-03
Abstract
No abstract record available.
Inventors
- 👤 Harris J Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:57
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/72; H01J29/76
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) | 1909-11-05 | 1910-05-07 | 1910-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-11-05 | 1914-05-07 | 1914-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-11-05 | 1918-05-07 | 1918-11-06 | $7700.00 | Window Closed / Lapsed |