US3092853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buoyancy units
Assignee: Individual
•
Filing: 1958-09-24
•
Granted: 1963-06-11
•
Expires: 1978-09-24
Abstract
No abstract record available.
Inventors
- 👤 John R Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:22
CPC Classifications
B; B63; B63B; B63B43/00; B63B43/02; B63B43/10; B63B43/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1474725A
Cited
US2279705A
Cited
US2506884A
Cited
US2775951A
Cited
GB775678A
Cited
US2904217A
Cited
US2894658A
Cited
US2857078A
Cited
US2924192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |