US3542996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control system for angular and planar electrode orientation
Assignee: AO Smith Corp
•
Filing: 1969-04-09
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Granted: 1970-11-24
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Expires: 1989-04-09
Abstract
No abstract record available.
Inventors
- 👤 John G Bollinger
- 👤 Howard L Harrison
- 👤 Michael A Stankey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:12
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303472; Y10T409/303528
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3122970A
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US2288032A
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US2839663A
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US2927992A
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US3150624A
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US3158121A
Cited
US3171012A
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US3408475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |