US3388075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicator for nitrogen oxide
Assignee: Individual
•
Filing: 1965-11-05
•
Granted: 1968-06-11
•
Expires: 1985-11-05
Abstract
No abstract record available.
Inventors
- 👤 Lothar W Brauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:39
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/22; Y; Y10; Y10T; Y10T436/00; Y10T436/15; Y10T436/17; Y10T436/177692; Y10T436/179228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2963351A
Cited
DE1146676B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |