Patent US2453649A successfully refreshed from Google Patents.
US2453649A
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US
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Shovel loader attachment for tractors
Assignee: Wyatt Manufacturing Co Inc
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Filing: 1946-04-05
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Granted: 1948-11-09
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Expires: 1966-04-05
Abstract
No abstract record available.
Inventors
- 👤 William V Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:48
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3405; E02F3/3408
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1725201A
Cited
US2397303A
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US2383686A
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US2412570A
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US2377112A
Cited
US2385512A
Cited
US2402908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |