Patent US3405526A successfully refreshed from Google Patents.
US3405526A
Expired / Lapsed
US
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Multiple stage, hydraulic jet propulsion apparatus for water craft
Assignee: Twin Disc Inc
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Filing: 1967-03-01
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Granted: 1968-10-15
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Expires: 1987-03-01
Abstract
No abstract record available.
Inventors
- 👤 George R Aschauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:07
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/08; B63H5/00; B63H5/07; B63H5/08; B63H5/10; B63H2005/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |