US2857505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stud welding apparatus
Assignee: OI Glass Inc
•
Filing: 1955-04-19
•
Granted: 1958-10-21
•
Expires: 1975-04-19
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:32
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/20; B23K9/201; H; H01; H01J; H01J9/00; H01J9/02; H01J9/14; H01J9/142
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR871795A
Cited
US2238054A
Cited
GB635625A
Cited
US2499262A
Cited
US2640133A
Cited
GB677449A
Cited
US2727123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |