US664866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional water-heater.
Assignee: Individual
•
Filing: 1898-05-31
•
Granted: 1901-01-01
•
Expires: 1918-05-31
Abstract
No abstract record available.
Inventors
- 👤 David E Howatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:57
CPC Classifications
F; F22; F22B; F22B23/00; F22B23/02; F23; F23B; F23B1/00; F23B1/02; F23B1/04; F23B1/06; F23B2700/00; F23B2700/01
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) | 1904-01-01 | 1904-07-02 | 1905-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-01-01 | 1908-07-02 | 1909-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-01-01 | 1912-07-02 | 1913-01-01 | $7700.00 | Window Closed / Lapsed |