US854300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum-tube electric apparatus.
Assignee: MOORE ELECTRICAL CO
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Filing: 1906-02-07
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Granted: 1907-05-21
•
Expires: 1926-02-07
Abstract
No abstract record available.
Inventors
- 👤 Daniel Mcfarlan Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:05
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/24; H01J61/28; Y; Y10; Y10T; Y10T137/00; Y10T137/7722
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) | 1910-05-20 | 1910-11-19 | 1911-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-05-20 | 1914-11-19 | 1915-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-05-20 | 1918-11-19 | 1919-05-21 | $7700.00 | Window Closed / Lapsed |