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US490631A
Expired / Lapsed
US
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Concrete-mixing machine
Assignee: —
•
Filing: —
•
Granted: 1893-01-24
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Expires: 1910-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:08
CPC Classifications
B; B02; B02C; B02C4/00; B02C4/28; B28; B28C; B28C7/00; B28C7/0046; B28C7/0053; B28C7/0069; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/1238; B28C5/1246; B28C7/0076; B28C7/04; B28C7/0404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1896-01-24 | 1896-07-25 | 1897-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-01-24 | 1900-07-26 | 1901-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-01-25 | 1904-07-26 | 1905-01-25 | $7700.00 | Window Closed / Lapsed |