Patent US2797659A successfully refreshed from Google Patents.
US2797659A
Expired / Lapsed
US
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Aqua jet propulsion device
Assignee: Individual
•
Filing: 1954-03-04
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Granted: 1957-07-02
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Expires: 1974-03-04
Abstract
No abstract record available.
Inventors
- 👤 Haase Bartholomew
- 👤 Willis N Mcwhorter
- 👤 Ralph G Dale
- 👤 Woodrow W Stahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:01
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/10; B63H11/107; B63H11/04; B63H11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US146266A
Cited
GB126425A
Cited
GB183434A
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US1747817A
Cited
GB503593A
Cited
US2149155A
Cited
US2243800A
Cited
US2255852A
Cited
US2528354A
Cited
US2655891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |