US2883516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance welding equipment
Assignee: Individual
•
Filing: 1957-05-27
•
Granted: 1959-04-21
•
Expires: 1977-05-27
Abstract
No abstract record available.
Inventors
- 👤 Norbert H Bek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:51
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE336825C
Cited
US2412044A
Cited
US2452010A
Cited
US2561486A
Cited
US2654256A
Cited
US2810062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |