US1822945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal impeller locating and locking means
Assignee: PACIFIC PUMP WORKS
•
Filing: 1927-12-27
•
Granted: 1931-09-15
•
Expires: 1947-12-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Weis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:10
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/20; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7054; Y10T403/7056
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) | 1934-09-14 | 1935-03-16 | 1935-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-14 | 1939-03-16 | 1939-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-14 | 1943-03-16 | 1943-09-15 | $7700.00 | Window Closed / Lapsed |