US2969019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer construction for a pump
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1955-10-05
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Granted: 1961-01-24
•
Expires: 1975-10-05
Abstract
No abstract record available.
Inventors
- 👤 Donald L Lorenz
- 👤 William V Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:16
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; B64D37/14; B64D37/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2455571A
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US2562361A
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US2725932A
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US2761387A
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US2688925A
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US2726604A
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US2748947A
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US2713244A
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US2812715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |