US2368411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door securing device
Assignee: W E LUDWIG
•
Filing: 1942-04-20
•
Granted: 1945-01-30
•
Expires: 1962-04-20
Abstract
No abstract record available.
Inventors
- 👤 Chambers Allen
- 👤 Roy E Gearhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:25
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/12; E05C17/16; E05C17/166; Y; Y10; Y10T; Y10T292/00; Y10T292/28; Y10T292/289; Y10T292/291; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5164
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) | 1948-01-30 | 1948-07-31 | 1949-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-01-30 | 1952-07-31 | 1953-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-01-30 | 1956-07-31 | 1957-01-30 | $7700.00 | Window Closed / Lapsed |