US2925648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making pump components
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1955-08-19
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Granted: 1960-02-23
•
Expires: 1975-08-19
Abstract
No abstract record available.
Inventors
- 👤 Leslie L Aspelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:02
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/22; F04B1/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49236; Y10T29/49245; Y10T29/49764; Y10T29/49778; Y10T29/4978; Y10T29/49826
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932436A
Cited
US1804142A
Cited
US1996889A
Cited
US2184183A
Cited
GB660624A
Cited
US2556033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |