US2920574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor-pump unit and method of making same
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1956-01-23
•
Granted: 1960-01-12
•
Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Sampietro Achilles Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:35
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/132; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2438629A
Cited
US2418221A
Cited
GB594849A
Cited
US2522238A
Cited
US2588173A
Cited
US2689396A
Cited
US2700343A
Cited
US2693149A
Cited
US2644635A
Cited
US2782720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |