US3494708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separable blade agitator
Assignee: Pfaudler Inc
•
Filing: 1968-04-22
•
Granted: 1970-02-10
•
Expires: 1988-04-22
Abstract
No abstract record available.
Inventors
- 👤 Erwin J Nunlist
- 👤 John S Eyster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:32
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/07; B01F27/071; Y; Y10; Y10T; Y10T403/00; Y10T403/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2811339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |