US2575674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permutation lock
Assignee: Individual
•
Filing: 1949-03-26
•
Granted: 1951-11-20
•
Expires: 1969-03-26
Abstract
No abstract record available.
Inventors
- 👤 Harry C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:26
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/08; E05B37/0031; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7141; Y10T70/7153; Y10T70/7181; Y10T70/7198; Y10T70/7237; Y10T70/7243; Y10T70/7249; Y10T70/7254; Y10T70/735; Y10T70/7367; Y10T70/7424
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |