US2966778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caissons for wharf construction and method of installing same
Assignee: Frederic R Harris Inc
•
Filing: 1953-09-08
•
Granted: 1961-01-03
•
Expires: 1973-09-08
Abstract
No abstract record available.
Inventors
- 👤 Edward J Quirin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:55
CPC Classifications
E; E02; E02D; E02D27/00; E02D27/10; E02D27/18; E02D23/00; E02D23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310461A
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US782557A
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US868092A
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US875699A
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US1349992A
Cited
US1294556A
Cited
GB149137A
Cited
US2396226A
Cited
US2687017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |