US461890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete block and method
Assignee: —
•
Filing: —
•
Granted: 1891-10-27
•
Expires: 1908-10-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:39
CPC Classifications
B; B32; B32B; B32B27/00; H; H05; H05K; H05K1/00; H05K1/02; H05K1/0266; H05K1/0268; Y; Y10; Y10S; Y10S264/00; Y10S264/57; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24545; Y10T428/24777
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) | 1894-10-26 | 1895-04-27 | 1895-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-10-26 | 1899-04-27 | 1899-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-10-27 | 1903-04-28 | 1903-10-28 | $7700.00 | Window Closed / Lapsed |