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US2443008A
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US
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Tubular frame structure
Assignee: Murray Ohio Manufacturing Co
•
Filing: 1945-02-09
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Granted: 1948-06-08
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Expires: 1965-02-09
Abstract
No abstract record available.
Inventors
- 👤 Herman L Kraeft
- 👤 Leonard J Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:12
CPC Classifications
B; B62; B62K; B62K19/00; B62K19/18; B62K19/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32213; Y10T403/32975; Y10T403/32983
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US590307A
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US603244A
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GB189620146A
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GB189708489A
Cited
US643591A
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US736527A
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FR436485A
Cited
US2174693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-08 | 1951-12-08 | 1952-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-08 | 1955-12-08 | 1956-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-08 | 1959-12-08 | 1960-06-08 | $7700.00 | Window Closed / Lapsed |