US3424094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable delivery pump or compressor
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1966-12-23
•
Granted: 1969-01-28
•
Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Hubert M Clark
- 👤 Gilbert H Drutchas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:37
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/10; F04C14/14; F04C15/00; F04C15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3068797A
Cited
US1482807A
Cited
US2420806A
Cited
US2866417A
Cited
US2948229A
Cited
US3279385A
Cited
US3286645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |