Patent US239274A successfully refreshed from Google Patents.
US239274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
schadowsky
Assignee: —
•
Filing: —
•
Granted: 1881-03-22
•
Expires: 1898-03-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:21
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/02; E05C19/028; Y; Y10; Y10S; Y10S220/00; Y10S220/26; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876; Y10T292/0878
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) | 1884-03-21 | 1884-09-20 | 1885-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1888-03-21 | 1888-09-20 | 1889-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1892-03-21 | 1892-09-20 | 1893-03-22 | $7700.00 | Window Closed / Lapsed |