US3421060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for stabilising ships
Assignee: Findlay Irvine Ltd
•
Filing: 1965-06-01
•
Granted: 1969-01-07
•
Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 John A Irvine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0875
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2478956A
Cited
US2664530A
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US2606310A
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US2936411A
Cited
US3080513A
Cited
US3218863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |