US3531618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic welding machine
Assignee: Kentucky Electronics Inc
•
Filing: 1966-08-19
•
Granted: 1970-09-29
•
Expires: 1986-08-19
Abstract
No abstract record available.
Inventors
- 👤 Chester O Merchant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:46
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/18; B; B23; B23K; B23K11/00; B23K11/002; H01J2209/00; H01J2209/18; H01J2209/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1898468A
Cited
US3011046A
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US2846561A
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US2905803A
Cited
US3161753A
Cited
US3299248A
Cited
US3288976A
Cited
US3309495A
Cited
US3271555A
Cited
US3317770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |