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US2420228A
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Bulkhead and dock
Assignee: RICHARD J WELSH
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Filing: 1945-09-27
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Granted: 1947-05-06
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Expires: 1965-09-27
Abstract
No abstract record available.
Inventors
- 👤 Condon John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:03
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B3/066; E02D; E02D29/00; E02D29/02; E02D29/0258; E02D29/0266
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) | 1950-05-05 | 1950-11-04 | 1951-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-05 | 1954-11-04 | 1955-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-05 | 1958-11-04 | 1959-05-06 | $7700.00 | Window Closed / Lapsed |