US3532180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-flexible seal for captured air bubble vehicle
Assignee: United States Department of the Navy
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Filing: 1968-05-17
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Granted: 1970-10-06
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Expires: 1988-05-17
Abstract
No abstract record available.
Inventors
- 👤 Allen G Ford
- 👤 Robert A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/04; B60V1/046; B60V3/00; B60V3/06; B60V3/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |