Patent US2908804A successfully refreshed from Google Patents.
Patent US5777612A successfully refreshed from Google Patents.
US2425778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing system
Assignee: CO Two Fire Equipment Co
•
Filing: 1942-11-05
•
Granted: 1947-08-19
•
Expires: 1962-11-05
Abstract
No abstract record available.
Inventors
- 👤 Frank B Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:48
CPC Classifications
A; A62; A62C; A62C3/00; A62C3/07; A62C3/08; A62C35/00; A62C35/02; A62C35/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-18 | 1951-02-17 | 1951-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-18 | 1955-02-17 | 1955-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-18 | 1959-02-17 | 1959-08-19 | $7700.00 | Window Closed / Lapsed |