Patent US3402447A successfully refreshed from Google Patents.
US3402447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner for singeing threads
Assignee: AG FR METTLER'S SOHNE MASCHINENFABRIK
•
Filing: 1967-04-19
•
Granted: 1968-09-24
•
Expires: 1987-04-19
Abstract
No abstract record available.
Inventors
- 👤 Mettler Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:06
CPC Classifications
D; D02; D02J; D02J3/00; D02J3/12; D02J3/16; D06; D06C; D06C9/00; D06C2700/00; D06C2700/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1665970A
Cited
US1745920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |