US3484667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eddy current seam tracker and servo control responsive thereto
Assignee: Lockheed Martin Corp
•
Filing: 1965-07-28
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Granted: 1969-12-16
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Expires: 1985-07-28
Abstract
No abstract record available.
Inventors
- 👤 David Wofsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:57
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/127; B23Q35/13; B23K; B23K9/00; B23K9/12; B23K9/127; B23K9/1272; B23K9/1276
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2971079A
Cited
US3359486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |