Patent US2479048A successfully refreshed from Google Patents.
US2479048A
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US
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Attachment for vehicles for handling bulky materials
Assignee: OTTAWA STEEL PRODUCTS Inc
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Filing: 1946-10-16
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Granted: 1949-08-16
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Expires: 1966-10-16
Abstract
No abstract record available.
Inventors
- 👤 Donald W Machin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:04
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; F; F16; F16L; F16L19/00; F16L19/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2306313A
Cited
US2319921A
Cited
US2417544A
Cited
US2391857A
Cited
US2417021A
Cited
US2426544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |