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Patent US243450A successfully refreshed from Google Patents.
US243450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
lafargkje
Assignee: —
•
Filing: —
•
Granted: 1881-06-28
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Expires: 1898-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:33
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/06; B63H25/08; B63H25/14; B63H25/26; B63H25/28; B63H25/32; F; F15; F15B; F15B1/00; F15B1/02; F15B1/027; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30525
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) | 1884-06-27 | 1884-12-27 | 1885-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1888-06-27 | 1888-12-27 | 1889-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1892-06-27 | 1892-12-27 | 1893-06-28 | $7700.00 | Window Closed / Lapsed |