US32298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture op hydraulic-cement pipes
Assignee: —
•
Filing: —
•
Granted: 1861-05-14
•
Expires: 1878-05-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:16
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/0003; B29C37/0017; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923; Y10S425/00; Y10S425/126
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) | 1864-05-13 | 1864-11-12 | 1865-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1868-05-13 | 1868-11-12 | 1869-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1872-05-13 | 1872-11-12 | 1873-05-14 | $7700.00 | Window Closed / Lapsed |