US89426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in blanks for stove-pipes
Assignee: —
•
Filing: —
•
Granted: 1869-04-27
•
Expires: 1886-04-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:56
CPC Classifications
B; B21; B21D; B21D53/00; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/28; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12188; Y10T428/12229; Y10T428/12236; Y10T428/1225; Y10T428/12257
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) | 1872-04-26 | 1872-10-26 | 1873-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1876-04-26 | 1876-10-26 | 1877-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1880-04-26 | 1880-10-26 | 1881-04-27 | $7700.00 | Window Closed / Lapsed |