US2870434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection and signaling apparatus
Assignee: Honeywell Inc
•
Filing: 1955-01-18
•
Granted: 1959-01-20
•
Expires: 1975-01-18
Abstract
No abstract record available.
Inventors
- 👤 George R Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:20
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2389103A
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US976645A
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US1249717A
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US1244332A
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US1916481A
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US2046622A
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US2149773A
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US2599623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |