US3370586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater breathing device with valved float
Assignee: Individual
•
Filing: 1965-06-01
•
Granted: 1968-02-27
•
Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Robert J Aragona
- 👤 Jerome T Fryling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:52
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/18; B63C11/20; B63C11/205; B63C11/207
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US908690A
Cited
US1324514A
Cited
US1824512A
Cited
US2780224A
Cited
FR1177002A
Cited
US2974331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |