Patent US3022759A successfully refreshed from Google Patents.
US3022759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete floating wharf
Assignee: Basalt Rock Co Inc
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Filing: 1959-08-19
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Granted: 1962-02-27
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Expires: 1979-08-19
Abstract
No abstract record available.
Inventors
- 👤 Donald O Mccall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:34
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B3/062; E02B3/064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1080499A
Cited
US1858790A
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US2620651A
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US2590685A
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US2867111A
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US2879735A
Cited
US2833186A
Cited
US2857872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |