Patent US766643A successfully refreshed from Google Patents.
US766643A
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US
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Diving apparatus.
Assignee: GRAF WLADIMIR SKORZEWSKI
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Filing: 1904-03-19
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Granted: 1904-08-02
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Expires: 1924-03-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph Von Miniszewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:18
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/34; B63C11/44
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) | 1907-08-02 | 1908-02-01 | 1908-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-08-02 | 1912-02-01 | 1912-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-08-02 | 1916-02-01 | 1916-08-02 | $7700.00 | Window Closed / Lapsed |