US3021544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self propelling sectional floating bridge
Assignee: Individual
•
Filing: 1956-05-29
•
Granted: 1962-02-20
•
Expires: 1976-05-29
Abstract
No abstract record available.
Inventors
- 👤 Gillois Jean
- 👤 Gehlen Hermann Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:09
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0061; E; E01; E01D; E01D15/00; E01D15/14; E01D15/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR760159A
Cited
US1073794A
Cited
US1447893A
Cited
US1941348A
Cited
US2339098A
Cited
US2341166A
Cited
US2556175A
Cited
US2636197A
Cited
US2562431A
Cited
US2647270A
Cited
FR1112888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |