Patent US2423832A successfully refreshed from Google Patents.
US2423832A
Expired / Lapsed
US
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Inflatable, collapsible, military pontoon bridge
Assignee: Individual
•
Filing: 1942-12-21
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Granted: 1947-07-15
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Expires: 1962-12-21
Abstract
No abstract record available.
Inventors
- 👤 James J Gearon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:25
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US522348A
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US659883A
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US1093987A
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US1279097A
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US1470459A
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US1671642A
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US1723213A
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US2085156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-14 | 1951-01-13 | 1951-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-14 | 1955-01-13 | 1955-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-14 | 1959-01-13 | 1959-07-15 | $7700.00 | Window Closed / Lapsed |