US2060899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump for corrosive liquids
Assignee: Individual
•
Filing: 1935-01-10
•
Granted: 1936-11-17
•
Expires: 1955-01-10
Abstract
No abstract record available.
Inventors
- 👤 Arthur O Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:14
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2205; F04D29/2222; F04D29/2227; F04D7/00; F04D7/02; F04D7/06; F05; F05D; F05D2300/00; F05D2300/20; F05D2300/21; F05D2300/2102; F05D2300/40; F05D2300/43; F05D2300/431
Claims Analysis
Total Claims: 0
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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) | 1939-11-17 | 1940-05-18 | 1940-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-17 | 1944-05-18 | 1944-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-17 | 1948-05-18 | 1948-11-17 | $7700.00 | Window Closed / Lapsed |