Patent US2992735A successfully refreshed from Google Patents.
US2992735A
Expired / Lapsed
US
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Magnetic attractor
Assignee: Indiana General Corp
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Filing: 1957-11-20
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Granted: 1961-07-18
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Expires: 1977-11-20
Abstract
No abstract record available.
Inventors
- 👤 Gerald P Troy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:05
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/10; B03C1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733812A
Cited
US1291534A
Cited
US2648434A
Cited
US2707557A
Cited
US2822089A
Cited
US2678729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |