US3060463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmental pontoon-buoy
Assignee: Individual
•
Filing: 1959-02-16
•
Granted: 1962-10-30
•
Expires: 1979-02-16
Abstract
No abstract record available.
Inventors
- 👤 Louis I Pentzien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:36
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/34; F; F16; F16L; F16L1/00; F16L1/12; F16L1/20; F16L1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731800A
Cited
US649258A
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US745192A
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GB191507157A
Cited
US1640980A
Cited
US1821320A
Cited
US2397844A
Cited
US2394764A
Cited
US2666934A
Cited
US2770950A
Cited
US2759201A
Cited
US2859458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |