US3447684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid strainer
Assignee: Carrier Corp
•
Filing: 1964-12-21
•
Granted: 1969-06-03
•
Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Frank A Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:26
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/12; B01D29/00; B01D29/11; B01D29/114; B01D29/115; B01D29/62; B01D29/66; B01D35/06; B01D35/14; B01D35/153
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US110217A
Cited
US1213764A
Cited
US2183075A
Cited
US2076322A
Cited
US2441526A
Cited
US2828017A
Cited
US2970696A
Cited
US3157131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |