Patent DE20335C successfully refreshed from Google Patents.
US13209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air and steam eng-ine
Assignee: —
•
Filing: —
•
Granted: 1855-07-10
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Expires: 1872-07-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:47
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/12; F02C7/16; F02C7/18; F02C7/185; F02G; F02G3/00
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) | 1858-07-09 | 1859-01-08 | 1859-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1862-07-09 | 1863-01-08 | 1863-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1866-07-09 | 1867-01-08 | 1867-07-10 | $7700.00 | Window Closed / Lapsed |