US1669115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic key
Assignee: SAFEWAY LOCK Co
•
Filing: 1925-02-06
•
Granted: 1928-05-08
•
Expires: 1945-02-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Anakin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:57
CPC Classifications
E; E05; E05B; E05B47/00; E05B47/0038; E05B47/0045; Y; Y10; Y10S; Y10S70/00; Y10S70/37; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7802; Y10T70/7842; Y10T70/7859; Y10T70/7864; Y10T70/7904; Y10T70/7915; Y10T70/7932; Y10T70/7944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-05-08 | 1931-11-07 | 1932-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-08 | 1935-11-07 | 1936-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-08 | 1939-11-07 | 1940-05-08 | $7700.00 | Window Closed / Lapsed |