US2814943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcing trussed girder
Assignee: Individual
•
Filing: 1955-10-12
•
Granted: 1957-12-03
•
Expires: 1975-10-12
Abstract
No abstract record available.
Inventors
- 👤 Bowie G Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:29
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/01; E04C5/02; E04C5/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49632
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE368093C
Cited
US843726A
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US1081647A
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US1405654A
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FR580037A
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US1674086A
Cited
DE555038C
Cited
US2277615A
Cited
US2256812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |