Patent US3511964A successfully refreshed from Google Patents.
US3511964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant for welding beams to a metal sheet
Assignee: ALEXEI MAXIMOVICH DROZHZHENIKO
•
Filing: 1967-09-14
•
Granted: 1970-05-12
•
Expires: 1987-09-14
Abstract
No abstract record available.
Inventors
- 👤 Mikhail Matveevich Polyakov
- 👤 Alexei Maximovic Drozhzhenikov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:24
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/025; B23K9/0256
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |