Patent US2802223A successfully refreshed from Google Patents.
US2802223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming devices
Assignee: Individual
•
Filing: 1952-08-08
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Granted: 1957-08-13
•
Expires: 1972-08-08
Abstract
No abstract record available.
Inventors
- 👤 Magone Roscoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:31
CPC Classifications
A; A63; A63B; A63B31/00; A63B31/08; A63B31/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US18809A
Cited
US1324722A
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US661595A
Cited
US849971A
Cited
FR417889A
Cited
US991331A
Cited
US1839489A
Cited
US2006915A
Cited
GB551168A
Cited
US2423571A
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 |