US3418018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic latch
Assignee: Individual
•
Filing: 1965-10-21
•
Granted: 1968-12-24
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Ivan L Marburger
- 👤 Elmer A Haglund
- 👤 Donald W Howell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:48
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49758; Y10T292/00; Y10T292/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2990210A
Cited
US2855242A
Cited
US2935353A
Cited
US3023991A
Cited
US3169743A
Cited
US3174786A
Cited
US3260788A
Cited
US3287051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |