Patent US802221A successfully refreshed from Google Patents.
US802221A
Expired / Lapsed
US
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Chair life-preserver.
Assignee: Individual
•
Filing: 1905-02-15
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Granted: 1905-10-17
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Expires: 1925-02-15
Abstract
No abstract record available.
Inventors
- 👤 Mathias Kuhnen
- 👤 August Spader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:34
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/28; B63C9/30
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) | 1908-10-16 | 1909-04-17 | 1909-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-10-16 | 1913-04-17 | 1913-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-10-16 | 1917-04-17 | 1917-10-17 | $7700.00 | Window Closed / Lapsed |