US2635167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of spot welding
Assignee: Gregory Industries Inc
•
Filing: 1948-04-16
•
Granted: 1953-04-14
•
Expires: 1968-04-16
Abstract
No abstract record available.
Inventors
- 👤 Nelson Ted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:11
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/002; B23K11/0033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1278357A
Cited
US1330241A
Cited
US1296651A
Cited
US1978178A
Cited
US2014090A
Cited
US2287818A
Cited
US2293163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |