US3363637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water softening apparatus for article washing machines
Assignee: Individual
•
Filing: 1966-06-09
•
Granted: 1968-01-16
•
Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Rumbaugh
- 👤 Virginia W Rumbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/007; A; A47; A47L; A47L15/00; A47L15/42; A47L15/4229; C; C02; C02F; C02F1/00; C02F1/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1211052A
Cited
US1450054A
Cited
US2033533A
Cited
US2654386A
Cited
US2723035A
Cited
US2825666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |