US2556175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge and mobile launching structure therefor
Assignee: Individual
•
Filing: 1945-06-12
•
Granted: 1951-06-12
•
Expires: 1965-06-12
Abstract
No abstract record available.
Inventors
- 👤 Lester P Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:05
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/12; E01D15/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US365657A
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US1593999A
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US1116841A
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GB152407A
Cited
US1383080A
Cited
FR799213A
Cited
GB499446A
Cited
US2174493A
Cited
US2215631A
Cited
US2320620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |