Patent US2802222A successfully refreshed from Google Patents.
US2802222A
Expired / Lapsed
US
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Life preserver belt
Assignee: Individual
•
Filing: 1956-08-06
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Granted: 1957-08-13
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Expires: 1976-08-06
Abstract
No abstract record available.
Inventors
- 👤 David C Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:00
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/13; B63C9/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1742104A
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GB368195A
Cited
CH249510A
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US2532242A
Cited
US2629117A
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US2684341A
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US2660194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |