US2636467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic jet marine propulsion system
Assignee: Individual
•
Filing: 1949-05-31
•
Granted: 1953-04-28
•
Expires: 1969-05-31
Abstract
No abstract record available.
Inventors
- 👤 Bruce B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:44
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US94463A
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US617969A
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US1239009A
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US1326730A
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US776416A
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US1023515A
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US1104963A
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DE390774C
Cited
US1545723A
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US1687360A
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US2467022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |