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Patent US2896991A successfully refreshed from Google Patents.
US2896991A
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Magnetic door holder
Assignee: Magni Power Co
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Filing: 1956-07-17
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Granted: 1959-07-28
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Expires: 1976-07-17
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:02
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/16; Y; Y10; Y10S; Y10S7/00; Y10S7/901; Y10T; Y10T292/00; Y10T292/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1252289A
Cited
US1784256A
Cited
US2269149A
Cited
US2514927A
Cited
US2690349A
Cited
US2701158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |