US3039397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1958-04-21
•
Granted: 1962-06-19
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Prasse
- 👤 Howard L Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:03
CPC Classifications
F; F04; F04D; F04D5/00; F04D29/00; F04D29/18; F04D29/22; F04D29/24; F04D29/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1720458A
Cited
US1904321A
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GB421458A
Cited
GB421964A
Cited
DE698485C
Cited
US2649052A
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US2533399A
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US2604852A
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US2696789A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |