US3068655A
Expired / Lapsed
US
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Mobile pneumatic breakwater
Assignee: STANDARD DREDGING CORP
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Filing: 1959-12-01
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Granted: 1962-12-18
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Expires: 1979-12-01
Abstract
No abstract record available.
Inventors
- 👤 John B Murray
- 👤 Kurt H B Posselt
- 👤 Tillman P Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:19
CPC Classifications
E; E02; E02B; E02B1/00; E02B1/003; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2311; B01F23/2312; B01F23/23123; B01F23/23124; B01F23/231241; B01F23/231242; B01F23/23126; B01F23/231263; B01F23/23114; B01F23/231142; B01F23/231143; B01F23/23125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |