US20562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in apparatus for distilling oils
Assignee: —
•
Filing: —
•
Granted: 1858-06-15
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Expires: 1875-06-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:14
CPC Classifications
B; B01; B01D; B01D3/00; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04
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) | 1861-06-14 | 1861-12-14 | 1862-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1865-06-14 | 1865-12-14 | 1866-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1869-06-14 | 1869-12-14 | 1870-06-15 | $7700.00 | Window Closed / Lapsed |