Patent US3059637A successfully refreshed from Google Patents.
US3059637A
Expired / Lapsed
US
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Non-return valve for swim mask or face plate
Assignee: WJ Voit Rubber Corp
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Filing: 1961-01-24
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Granted: 1962-10-23
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Expires: 1981-01-24
Abstract
No abstract record available.
Inventors
- 👤 Senne David Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:52
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/12; Y; Y10; Y10S; Y10S137/00; Y10S137/908; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/789
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2174503A
Cited
US2326651A
Cited
FR888273A
Cited
FR1044187A
Cited
US2918918A
Cited
FR1181041A
Cited
FR1249106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |