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Patent US2844402A successfully refreshed from Google Patents.
US2844402A
Expired / Lapsed
US
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Magnetic latch
Assignee: General Electric Co
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Filing: 1957-08-22
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Granted: 1958-07-22
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Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Philip G Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:01
CPC Classifications
E; E05; E05B; E05B53/00; E05B53/001; E05C; E05C19/00; E05C19/16; Y; Y10; Y10S; Y10S292/00; Y10S292/72; Y10T; Y10T292/00; Y10T292/11; Y10T292/175; Y10T292/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |