US839561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator.
Assignee: AMERICAN ENGINEERING SPECIALTY Co
•
Filing: 1904-04-01
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Granted: 1906-12-25
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Expires: 1924-04-01
Abstract
No abstract record available.
Inventors
- 👤 James H Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:58
CPC Classifications
F; F28; F28F; F28F27/00; F24; F24F; F24F11/00; F24F11/30; F24F2110/00; F24F2110/10; Y; Y10; Y10S; Y10S165/00; Y10S165/001; Y10S165/007; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86236
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) | 1909-12-24 | 1910-06-25 | 1910-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-12-24 | 1914-06-25 | 1914-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-12-24 | 1918-06-25 | 1918-12-25 | $7700.00 | Window Closed / Lapsed |