Patent US968350A successfully refreshed from Google Patents.
US968350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blowpipe and method of operating the same.
Assignee: Electro Metallurgical Co USA
•
Filing: 1909-12-11
•
Granted: 1910-08-23
•
Expires: 1929-12-11
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:04
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1913-08-22 | 1914-02-21 | 1914-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-08-22 | 1918-02-21 | 1918-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-08-22 | 1922-02-21 | 1922-08-23 | $7700.00 | Window Closed / Lapsed |