Patent US2582669A successfully refreshed from Google Patents.
Patent US3219192A successfully refreshed from Google Patents.
US3219192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter for washing apparatus
Assignee: Whirlpool Corp
•
Filing: 1962-07-26
•
Granted: 1965-11-23
•
Expires: 1982-07-26
Abstract
No abstract record available.
Inventors
- 👤 Robert S Trembath
- 👤 John J Zylstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:19
CPC Classifications
B; B01; B01D; B01D35/00; D; D06; D06F; D06F39/00; D06F39/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1709291A
Cited
US2439535A
Cited
US2754097A
Cited
US2939305A
Cited
US2936604A
Cited
US2984359A
Cited
US3098305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |