US1456584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key lock
Assignee: Individual
•
Filing: 1920-04-22
•
Granted: 1923-05-29
•
Expires: 1940-04-22
Abstract
No abstract record available.
Inventors
- 👤 Dillwyn M Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:10
CPC Classifications
E; E05; E05B; E05B29/00; E05B29/0026; Y; Y10; Y10S; Y10S70/00; Y10S70/37; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7446; Y10T70/7463; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7565; Y10T70/7576; Y10T70/7588; Y10T70/7593; Y10T70/7599; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7859; Y10T70/7881
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) | 1926-05-28 | 1926-11-27 | 1927-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-05-28 | 1930-11-27 | 1931-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-05-28 | 1934-11-27 | 1935-05-29 | $7700.00 | Window Closed / Lapsed |