Patent US843357A successfully refreshed from Google Patents.
US843357A
Expired / Lapsed
US
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Hull-cleaning and friction-reducing apparatus.
Assignee: Individual
•
Filing: 1906-01-24
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Granted: 1907-02-05
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Expires: 1926-01-24
Abstract
No abstract record available.
Inventors
- 👤 William Arky Partee
- 👤 John Criddle Wharton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:38
CPC Classifications
B; B63; B63B; B63B3/00
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) | 1910-02-04 | 1910-08-06 | 1911-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-02-04 | 1914-08-06 | 1915-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-02-04 | 1918-08-06 | 1919-02-05 | $7700.00 | Window Closed / Lapsed |