US693844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for preparing and laying concrete.
Assignee: PATRICK W CAREY
•
Filing: 1901-03-15
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Granted: 1902-02-25
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Expires: 1921-03-15
Abstract
No abstract record available.
Inventors
- 👤 James T Dempsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:44
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/46; E01C19/47; B; B28; B28C; B28C5/00; B28C5/08; B28C5/0875
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) | 1905-02-24 | 1905-08-26 | 1906-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-02-24 | 1909-08-26 | 1910-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-02-24 | 1913-08-26 | 1914-02-25 | $7700.00 | Window Closed / Lapsed |