Patent US2315039A successfully refreshed from Google Patents.
Patent US3702422A successfully refreshed from Google Patents.
Patent US1754957A successfully refreshed from Google Patents.
Patent US2139937A successfully refreshed from Google Patents.
Patent US3583910A successfully refreshed from Google Patents.
US3583910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard water treatment
Assignee: Honeywell International Inc
•
Filing: 1969-02-19
•
Granted: 1971-06-08
•
Expires: 1989-02-19
Abstract
Abstract OBJECTIONALBLE PRECIPITABLE COMPOUNDS ARE REMOVED FROM WATER BY BRINGING THE WATER TO A CONDITION OF LABILE SUPERSATURATION THROUGH AN APPROPRIATE HEATING PROCEDURE THE CONDITIONS ARE CONTROLLED IN ORDER THAT THE SOLIDS MAY BE PRECIPITATED SPONTANEOUSLY AT A SELECTED TIME OR PLACE IN SUCH A WAY THAT THEY DO NOT FORM AS A SCALE IN THE EQUIPMENT AND ARE THEN SEPARATED FROM THE WATER.
Inventors
- 👤 Xerxes T Stoddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:23
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/042
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |