Patent US3021544A successfully refreshed from Google Patents.
US3021544A
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US
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Self propelling sectional floating bridge
Assignee: Individual
•
Filing: 1956-05-29
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Granted: 1962-02-20
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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 08:17
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0061; E; E01; E01D; E01D15/00; E01D15/14; E01D15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR760159A
Cited
US1073794A
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US1447893A
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US1941348A
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US2339098A
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US2341166A
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US2556175A
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US2636197A
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US2562431A
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US2647270A
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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 |