Patent US2996030A successfully refreshed from Google Patents.
US2996030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air powered water vehicle
Assignee: Individual
•
Filing: 1959-12-04
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Granted: 1961-08-15
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Expires: 1979-12-04
Abstract
No abstract record available.
Inventors
- 👤 Gordon J Lornson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:43
CPC Classifications
B; B63; B63H; B63H7/00; B63H7/02; B63B; B63B1/00; B63B1/16; B63B1/18; B63B1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US538527A
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US998437A
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US1075726A
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US1074951A
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US1424811A
Cited
US1720167A
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US1780998A
Cited
US1738979A
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US2272661A
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US2521268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |