Patent US5807520A successfully refreshed from Google Patents.
Patent US2465377A successfully refreshed from Google Patents.
US2465377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-sensing control means with gas-discharge device
Assignee: BANQUE POUR ENTPR S ELECTR
•
Filing: 1942-06-03
•
Granted: 1949-03-29
•
Expires: 1962-06-03
Abstract
No abstract record available.
Inventors
- 👤 Walter C Jaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:59
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/10; G08B17/11; G08B17/113; G01; G01N; G01N27/00; G01N27/62; G01N27/64; G01N27/66
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1304208A
Cited
US1632074A
Cited
US899068A
Cited
US878456A
Cited
US1953244A
Cited
US1746525A
Cited
US2122222A
Cited
DE720180C
Cited
US2278248A
Cited
US2383600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |