US3380175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary sieve drum treating device
Assignee: Anstalt fuer Pantentdienst
•
Filing: 1965-11-26
•
Granted: 1968-04-30
•
Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Fleissner Heinz
- 👤 Fleissner Gerold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:41
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/28; F26B17/288; F26B13/00; F26B13/10; F26B13/14; F26B13/16; Y; Y10; Y10S; Y10S68/00; Y10S68/902; Y10S68/903
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US416648A
Cited
US525758A
Cited
US2045115A
Cited
GB816094A
Cited
GB937103A
Cited
DE1145127B
Cited
GB944999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |