US2458610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas detector
Assignee: Individual
•
Filing: 1944-07-28
•
Granted: 1949-01-11
•
Expires: 1964-07-28
Abstract
No abstract record available.
Inventors
- 👤 Lindstrom Nils Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:16
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/22; G01N25/44; G01N25/46; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/204998; Y10T436/205831
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US970923A
Cited
US1007178A
Cited
US1223953A
Cited
US1415710A
Cited
GB160930A
Cited
GB171739A
Cited
GB491154A
Cited
US2340008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |