US3199571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner casting for infrared gas burner
Assignee: General Precision Inc
•
Filing: 1962-10-01
•
Granted: 1965-08-10
•
Expires: 1982-10-01
Abstract
No abstract record available.
Inventors
- 👤 Ernst R Koppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:52
CPC Classifications
F; F23; F23C; F23C99/00; F23C2700/00; F23C2700/04; F23C2700/043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
BE500724A
Cited
US529003A
Cited
CA616491A
Cited
US678624A
Cited
US2550296A
Cited
US2870830A
Cited
US3084736A
Cited
US3152873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |