US2255402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock
Assignee: Emhart Industries Inc
•
Filing: 1938-12-30
•
Granted: 1941-09-09
•
Expires: 1958-12-30
Abstract
No abstract record available.
Inventors
- 👤 Norman J Vile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:46
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/0013; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5097; Y10T70/5128; Y10T70/5133; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5345; Y10T70/5363; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7638; Y10T70/7667; Y10T70/7706; Y10T70/7712
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1944-09-08 | 1945-03-10 | 1945-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-08 | 1949-03-10 | 1949-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-08 | 1953-03-10 | 1953-09-09 | $7700.00 | Window Closed / Lapsed |