US3059419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for minimizing the combustible content of exhaust gases
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1959-08-13
•
Granted: 1962-10-23
•
Expires: 1979-08-13
Abstract
No abstract record available.
Inventors
- 👤 Julius W Schnabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:19
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/26; F01N3/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1260246A
Cited
US1605484A
Cited
US1789812A
Cited
US2203554A
Cited
US2263318A
Cited
US2559623A
Cited
US2848186A
Cited
US2851852A
Cited
US2771736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |