US395347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed-water heater
Assignee: —
•
Filing: —
•
Granted: 1889-01-01
•
Expires: 1906-01-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:06
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/126; F28F1/128; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/0408; F28D1/0426; F28D1/0435
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) | 1892-01-01 | 1892-07-02 | 1893-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1896-01-01 | 1896-07-02 | 1897-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1900-01-01 | 1900-07-03 | 1901-01-02 | $7700.00 | Window Closed / Lapsed |