US1786361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of filter sieves and sieves produced by such process
Assignee: Individual
•
Filing: 1927-01-28
•
Granted: 1930-12-23
•
Expires: 1947-01-28
Abstract
No abstract record available.
Inventors
- 👤 Pahl August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:35
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/20; B01D39/2055; B01D39/2058; B01D39/2062; B01D39/10; B01D39/12; B01D39/2003; B01D2239/00; B01D2239/04; B01D2239/0407; B01D2239/0471; B01D2239/0478
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-12-22 | 1934-06-23 | 1934-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-12-22 | 1938-06-23 | 1938-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-12-22 | 1942-06-23 | 1942-12-23 | $7700.00 | Window Closed / Lapsed |