US705321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of condensing steam or cooling fluids.
Assignee: Individual
•
Filing: 1901-04-08
•
Granted: 1902-07-22
•
Expires: 1921-04-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Colwell
- 👤 Edward S Colwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:37
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0007; F24F5/0035; Y; Y02; Y02B; Y02B30/00; Y02B30/54
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) | 1905-07-21 | 1906-01-20 | 1906-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-07-21 | 1910-01-20 | 1910-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-07-21 | 1914-01-20 | 1914-07-22 | $7700.00 | Window Closed / Lapsed |