US1909697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety doorlock
Assignee: Individual
•
Filing: 1932-01-30
•
Granted: 1933-05-16
•
Expires: 1952-01-30
Abstract
No abstract record available.
Inventors
- 👤 Macbeth Roy Earl
- 👤 Yeager Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:30
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/002; E05B13/004; E05C; E05C9/00; E05C9/04; E05C9/043; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0839; Y10T292/0844; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0974; Y10T292/1014; Y10T292/1022; Y10T292/1028; Y10T292/96
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) | 1936-05-15 | 1936-11-14 | 1937-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-15 | 1940-11-14 | 1941-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-15 | 1944-11-14 | 1945-05-16 | $7700.00 | Window Closed / Lapsed |