US2952083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dredge construction
Assignee: Individual
•
Filing: 1956-07-27
•
Granted: 1960-09-13
•
Expires: 1976-07-27
Abstract
No abstract record available.
Inventors
- 👤 John H Forkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:25
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/92; E02F3/9212; E02F3/9218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US413091A
Cited
US2178265A
Cited
US2205490A
Cited
US2255167A
Cited
US2300680A
Cited
US2678203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |