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US3400964A
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Magnetic closure device
Assignee: Max Baermann GmbH
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Filing: 1966-03-03
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Granted: 1968-09-10
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Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Baermann Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:44
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/08; F25D23/082; F25D23/087; E; E05; E05C; E05C19/00; E05C19/16; E05C19/161; Y; Y10; Y10T; Y10T292/00; Y10T292/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2494247A
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US2797958A
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US3137900A
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US3241198A
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US3221375A
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US3226367A
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US3284113A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |