US2797701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry chemical fire extinguisher valve
Assignee: Stop-Fire Inc
•
Filing: 1954-04-20
•
Granted: 1957-07-02
•
Expires: 1974-04-20
Abstract
No abstract record available.
Inventors
- 👤 Nurkiewicz Ignatius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:24
CPC Classifications
F; F16; F16K; F16K25/00; F16K25/02; A; A62; A62C; A62C13/00; A62C13/006; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/428; Y10T137/4294
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US246618A
Cited
US54722A
Cited
US979384A
Cited
US1142145A
Cited
US1516367A
Cited
US1608379A
Cited
US1805158A
Cited
US2121774A
Cited
US2285010A
Cited
US2250220A
Cited
CH235825A
Cited
FR907117A
Cited
US2506074A
Cited
US2646246A
Cited
US2661019A
Cited
DE815285C
Cited
US2644313A
Cited
US2701119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |