Patent US3047891A successfully refreshed from Google Patents.
US3047891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embarkation gangway
Assignee: LE CHASSIS METALLIQUE BELGE "CHAMEBEL" SA
•
Filing: 1959-06-23
•
Granted: 1962-08-07
•
Expires: 1979-06-23
Abstract
No abstract record available.
Inventors
- 👤 Golde Dimitri
- 👤 Vierendeel Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:45
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/30; B64F1/305
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US430935A
Cited
US713561A
Cited
GB534913A
Cited
US2344772A
Cited
US2700169A
Cited
US2688761A
Cited
US2697845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |