US2033466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective smoke detector
Assignee: Kidde Inc
•
Filing: 1931-11-11
•
Granted: 1936-03-10
•
Expires: 1951-11-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry Campbell Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:31
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/10; G08B17/103; F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/042; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N21/534; G08B17/11; G08B17/113; Y; Y10; Y10S; Y10S55/00; Y10S55/34; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/86823
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) | 1939-03-10 | 1939-09-09 | 1940-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-03-10 | 1943-09-09 | 1944-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-03-10 | 1947-09-09 | 1948-03-10 | $7700.00 | Window Closed / Lapsed |