US3432941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demonstration of magnetic phenomena
Assignee: Individual
•
Filing: 1966-02-11
•
Granted: 1969-03-18
•
Expires: 1986-02-11
Abstract
No abstract record available.
Inventors
- 👤 Raphael Isaac Minchom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:48
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/06; G09B23/18; G09B23/181
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1595801A
Cited
US2277057A
Cited
DE894516C
Cited
US2518635A
Cited
US2524804A
Cited
US3045362A
Cited
US3103751A
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 |