Patent US852647A successfully refreshed from Google Patents.
US852647A
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Submarine signaling.
Assignee: Submarine Signal Co
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Filing: 1907-01-08
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Granted: 1907-05-07
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Expires: 1927-01-08
Abstract
No abstract record available.
Inventors
- 👤 Lucien I Blake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:34
CPC Classifications
G; G10; G10K; G10K15/00; G10K15/04; Y; Y10; Y10S; Y10S116/00; Y10S116/18; Y10S116/19; Y10S181/00; Y10S181/40; Y10S181/402
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) | 1910-05-06 | 1910-11-05 | 1911-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-05-06 | 1914-11-05 | 1915-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-05-06 | 1918-11-05 | 1919-05-07 | $7700.00 | Window Closed / Lapsed |