US2693758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge apparatus for pumps
Assignee: Individual
•
Filing: 1950-10-09
•
Granted: 1954-11-09
•
Expires: 1970-10-09
Abstract
No abstract record available.
Inventors
- 👤 Pierce Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:06
CPC Classifications
F; F04; F04B; F04B47/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US972390A
Cited
US1065709A
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US1214902A
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US1385143A
Cited
US1428181A
Cited
US2252773A
Cited
US2365234A
Cited
US2253046A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |