US1099433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for heating and purifying or softening water.
Assignee: Individual
•
Filing: 1911-03-20
•
Granted: 1914-06-09
•
Expires: 1931-03-20
Abstract
No abstract record available.
Inventors
- 👤 Charles Erith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5236
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) | 1917-06-08 | 1917-12-08 | 1918-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-06-08 | 1921-12-08 | 1922-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-06-08 | 1925-12-08 | 1926-06-09 | $7700.00 | Window Closed / Lapsed |