US2952765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equalizing spot welding gun
Assignee: Individual
•
Filing: 1958-11-03
•
Granted: 1960-09-13
•
Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 Norman C Droste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:48
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/31; B23K11/317; B23K11/314; B23K11/315
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2879373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |