US2659514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charging door for transit concrete mixers
Assignee: Worthington Corp
•
Filing: 1950-05-31
•
Granted: 1953-11-17
•
Expires: 1970-05-31
Abstract
No abstract record available.
Inventors
- 👤 Robert M Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:02
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/42; B28C5/4203; B28C5/4268; B01; B01F; B01F35/00; B01F35/45; Y; Y10; Y10T; Y10T292/00; Y10T292/23; Y10T292/237
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US522606A
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US1359874A
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US1928380A
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US1948715A
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US2199765A
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US2264180A
Cited
US2516202A
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US2457927A
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US2447464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |