Patent US3497661A successfully refreshed from Google Patents.
US3497661A
Expired / Lapsed
US
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Method of and apparatus for percussive stud welding
Assignee: JAMES M COMSTOCK
•
Filing: 1965-08-03
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Granted: 1970-02-24
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Expires: 1985-08-03
Abstract
No abstract record available.
Inventors
- 👤 James M Comstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:07
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1066468A
Cited
US2685630A
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US2749528A
Cited
US3015022A
Cited
US3114031A
Cited
US3234354A
Cited
US3415974A
Cited
US3414699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |