Patent US238515A successfully refreshed from Google Patents.
US238515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
mcelroy
Assignee: —
•
Filing: —
•
Granted: 1881-03-08
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Expires: 1898-03-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:00
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/006
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) | 1884-03-07 | 1884-09-06 | 1885-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1888-03-07 | 1888-09-06 | 1889-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1892-03-07 | 1892-09-06 | 1893-03-08 | $7700.00 | Window Closed / Lapsed |