Patent US5113846A successfully refreshed from Google Patents.
Patent US45398A successfully refreshed from Google Patents.
US45398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in pumps
Assignee: —
•
Filing: —
•
Granted: 1864-12-13
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Expires: 1881-12-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:27
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2238; F04D29/225
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) | 1867-12-13 | 1868-06-13 | 1868-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1871-12-13 | 1872-06-13 | 1872-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1875-12-13 | 1876-06-13 | 1876-12-13 | $7700.00 | Window Closed / Lapsed |