US3017837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi stage centrifugal pump
Assignee: Individual
•
Filing: 1959-02-17
•
Granted: 1962-01-23
•
Expires: 1979-02-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Judd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
F; F04; F04D; F04D1/00; F04D1/06; F04D1/063; F04D1/066; Y; Y10; Y10S; Y10S415/00; Y10S415/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1629141A
Cited
AT33130B
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US1283879A
Cited
US1569092A
Cited
US1570285A
Cited
US2210401A
Cited
GB669357A
Cited
CH317623A
Cited
US2869471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |