US2950755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for apparatus using fuel gases
Assignee: Individual
•
Filing: 1953-12-22
•
Granted: 1960-08-30
•
Expires: 1973-12-22
Abstract
No abstract record available.
Inventors
- 👤 Frecourt Albert Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:03
CPC Classifications
F; F23; F23Q; F23Q9/00; F23Q9/08; F23Q9/12; F23D; F23D14/00; F23D14/46; F23D14/72; F23N; F23N5/00; F23N5/02; F23N5/04; F23Q9/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2005224A
Cited
US1983710A
Cited
US2348104A
Cited
FR953404A
Cited
US2736371A
Cited
US2716000A
Cited
US2812806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |