US2479178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for centrifugal pumps
Assignee: Individual
•
Filing: 1944-09-27
•
Granted: 1949-08-16
•
Expires: 1964-09-27
Abstract
No abstract record available.
Inventors
- 👤 Murphy Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:26
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE123561C
Cited
US1894943A
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GB322709A
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US1826212A
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US1931723A
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US1864683A
Cited
US1897280A
Cited
CH164616A
Cited
GB458262A
Cited
US2236902A
Cited
US2365065A
Cited
US2360372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |