Patent US2448311A successfully refreshed from Google Patents.
US2364522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and equipment for building concrete ships
Assignee: Individual
•
Filing: 1943-05-17
•
Granted: 1944-12-05
•
Expires: 1963-05-17
Abstract
No abstract record available.
Inventors
- 👤 Henri D A Ganteaume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:34
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/16; B28B7/168; B63; B63B; B63B3/00; B63B3/02; B63B3/04; B63B5/00; B63B5/14; B63B5/16; B63B73/00; B63B73/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-12-05 | 1948-06-05 | 1948-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-05 | 1952-06-05 | 1952-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-05 | 1956-06-05 | 1956-12-05 | $7700.00 | Window Closed / Lapsed |