Patent US3390772A successfully refreshed from Google Patents.
US3390772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanized heavy duty filter presses
Assignee: Chemokomplex Vegyipari Gep es Berendezes Export Import Vallalat
•
Filing: 1965-06-14
•
Granted: 1968-07-02
•
Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Juhasz Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:41
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/18; B01D25/00; B01D25/12; B01D25/127; B01D25/172; B01D25/176; B01D25/21; B01D25/215; B01D25/28; B01D25/282; B01D25/285; B01D25/32; B01D25/322
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3270887A
Cited
US3112264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |