US2443553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burglar alarm
Assignee: Individual
•
Filing: 1944-11-02
•
Granted: 1948-06-15
•
Expires: 1964-11-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Cadenhead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:27
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02; G08B13/08; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US53239A
Cited
US301862A
Cited
US348781A
Cited
US496519A
Cited
US606862A
Cited
US870063A
Cited
US874202A
Cited
US1040156A
Cited
US1253986A
Cited
US1849918A
Cited
US1830560A
Cited
US2084841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |