US2609785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire alarm
Assignee: Individual
•
Filing: 1950-05-05
•
Granted: 1952-09-09
•
Expires: 1970-05-05
Abstract
No abstract record available.
Inventors
- 👤 Charles H Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:17
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/02; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US926277A
Cited
US1009926A
Cited
US1200103A
Cited
US1262261A
Cited
US1369427A
Cited
US1380009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |