Patent US2236702A successfully refreshed from Google Patents.
US2236702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door lock
Assignee: Ternstedt Manufacturing Co
•
Filing: 1938-06-28
•
Granted: 1941-04-01
•
Expires: 1958-06-28
Abstract
No abstract record available.
Inventors
- 👤 Andersen Andrew Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:29
CPC Classifications
E; E05; E05B; E05B83/00; E05B83/36; E05B83/367; Y; Y10; Y10S; Y10S292/00; Y10S292/26; Y10S292/27; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/42; Y10T292/432; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5496
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) | 1944-03-31 | 1944-09-30 | 1945-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-31 | 1948-09-30 | 1949-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-31 | 1952-09-30 | 1953-04-01 | $7700.00 | Window Closed / Lapsed |