US3010186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston manufacture
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1954-01-14
•
Granted: 1961-11-28
•
Expires: 1974-01-14
Abstract
No abstract record available.
Inventors
- 👤 Townhill Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:11
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/18; B21J; B21J1/00; B21J1/02; B21J1/025; B21J13/00; B21J13/02; B21J5/00; B21J5/02; B21J5/06; B21J5/12; B23; B23P; B23P15/00; B23P15/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49249
Claims Analysis
Total Claims: 0
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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) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |