US3434084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of magnetizing magnets for a repulsion type of suspension
Assignee: Landis and Gyr Metering Inc
•
Filing: 1965-10-23
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Granted: 1969-03-18
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 James W Milligan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:50
CPC Classifications
H; H01; H01F; H01F13/00; H01F13/003; F; F16; F16C; F16C39/00; F16C39/06; F16C39/063; F16C39/066; G; G01; G01R; G01R11/00; G01R11/02; G01R11/12; G01R11/14; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/04; F16C2370/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2248272A
Cited
US2924758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |