US398115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating drum or radiator
Assignee: —
•
Filing: —
•
Granted: 1889-02-19
•
Expires: 1906-02-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:35
CPC Classifications
F; F28; F28D; F28D21/00; F28D21/0001; F28D21/0003; F28F; F28F27/00; F28F27/02; Y; Y10; Y10S; Y10S165/00; Y10S165/092; Y10S165/109; Y10S165/11; Y10S165/113; Y10S165/116; Y10S165/117
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) | 1892-02-19 | 1892-08-20 | 1893-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1896-02-19 | 1896-08-20 | 1897-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1900-02-19 | 1900-08-21 | 1901-02-20 | $7700.00 | Window Closed / Lapsed |