Patent US296263A successfully refreshed from Google Patents.
US296263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isaac f
Assignee: —
•
Filing: —
•
Granted: 1884-04-01
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Expires: 1901-04-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:21
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B01; B01D; B01D2239/00; B01D2239/04; B01D2239/0407; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24636
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) | 1887-04-01 | 1887-10-01 | 1888-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1891-04-01 | 1891-10-01 | 1892-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1895-04-01 | 1895-10-01 | 1896-04-01 | $7700.00 | Window Closed / Lapsed |