Patent US929563A successfully refreshed from Google Patents.
Patent US977959A successfully refreshed from Google Patents.
US977959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buoy.
Assignee: Individual
•
Filing: 1909-12-18
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Granted: 1910-12-06
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Expires: 1929-12-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:32
CPC Classifications
B; B63; B63C; B63C7/00; B63C7/30
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) | 1913-12-05 | 1914-06-06 | 1914-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-12-05 | 1918-06-06 | 1918-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-12-05 | 1922-06-06 | 1922-12-06 | $7700.00 | Window Closed / Lapsed |