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US3491318A
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Baseball seam magnet with variable magnetic field
Assignee: United States Atomic Energy Commission
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Filing: 1968-08-16
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Granted: 1970-01-20
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Expires: 1988-08-16
Abstract
No abstract record available.
Inventors
- 👤 Carl D Henning
- 👤 Anthony K Chargin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:54
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/02; H05H1/10; Y; Y02; Y02E; Y02E30/00; Y02E30/10; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/879
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3309638A
Cited
US3431523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |