Patent EP0249286A1 successfully refreshed from Google Patents.
Patent US3877074A successfully refreshed from Google Patents.
US3516701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch and lock of magnetic type
Assignee: Individual
•
Filing: 1968-09-03
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Granted: 1970-06-23
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Expires: 1988-09-03
Abstract
No abstract record available.
Inventors
- 👤 Percy R Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:23
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/16; E05C19/163; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1021; Y10T292/1022; Y10T292/1031; Y10T292/11
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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |