US3044626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water softening apparatus and system
Assignee: Individual
•
Filing: 1958-01-06
•
Granted: 1962-07-17
•
Expires: 1978-01-06
Abstract
No abstract record available.
Inventors
- 👤 Rose Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2704554A
Cited
US1611422A
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US1652710A
Cited
US1910753A
Cited
US2265225A
Cited
US2209993A
Cited
US2309032A
Cited
US2243815A
Cited
US2744867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |