US2664204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary drainage screen
Assignee: Stadler Hurter & Co
•
Filing: 1950-06-08
•
Granted: 1953-12-29
•
Expires: 1970-06-08
Abstract
No abstract record available.
Inventors
- 👤 Alfred T Hurter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:04
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/067; B01D33/11; B01D33/70; B01D33/72; B01D33/722; B01D33/80; B01D33/801; B01D2201/00; B01D2201/28; B01D2201/282
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |