US2462886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treating device
Assignee: HOTSTREAM HEATER CO
•
Filing: 1945-05-14
•
Granted: 1949-03-01
•
Expires: 1965-05-14
Abstract
No abstract record available.
Inventors
- 👤 Clarence H Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:56
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/688; B; B01; B01F; B01F21/00; B01F21/20; B01F21/22; B01F25/00; B01F25/30; B01F25/31; B01F25/316; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US412910A
Cited
US461235A
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US1193038A
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US1335802A
Cited
US823941A
Cited
GB190519378A
Cited
US1216051A
Cited
US1409248A
Cited
US1676134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |