US3055307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure yoke for pumps
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1959-10-23
•
Granted: 1962-09-25
•
Expires: 1979-10-23
Abstract
No abstract record available.
Inventors
- 👤 John E Thrap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:56
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0023; F04C15/0026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2044873A
Cited
US2816510A
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US2824522A
Cited
US2809592A
Cited
GB815501A
Cited
GB769763A
Cited
US2842066A
Cited
US2977886A
Cited
US2967487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |