US1417812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal pump
Assignee: Individual
•
Filing: 1918-08-08
•
Granted: 1922-05-30
•
Expires: 1938-08-08
Abstract
No abstract record available.
Inventors
- 👤 Guy H Elmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/06; Y; Y10; Y10S; Y10S277/00; Y10S277/907
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) | 1925-05-29 | 1925-11-28 | 1926-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-05-29 | 1929-11-28 | 1930-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-05-29 | 1933-11-28 | 1934-05-30 | $7700.00 | Window Closed / Lapsed |