US684670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of brazing tubes.
Assignee: CHARLES B HEADLY
•
Filing: 1901-02-09
•
Granted: 1901-10-15
•
Expires: 1921-02-09
Abstract
No abstract record available.
Inventors
- 👤 George Boehmler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:33
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0222; B23K35/0244; B23K35/025
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) | 1904-10-14 | 1905-04-15 | 1905-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-10-14 | 1909-04-15 | 1909-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-10-14 | 1913-04-15 | 1913-10-15 | $7700.00 | Window Closed / Lapsed |