US2459267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained emergency signaling device adapted to be operated automatically after being launched
Assignee: Aerial Products Inc
•
Filing: 1947-07-16
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Granted: 1949-01-18
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Expires: 1967-07-16
Abstract
No abstract record available.
Inventors
- 👤 Dwyer Martin
- 👤 Harbor Hewlett
- 👤 Philip B Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:00
CPC Classifications
B; B63; B63B; B63B51/00; B63B51/04; F; F42; F42B; F42B4/00; F42B4/26; G; G08; G08B; G08B5/00; G08B5/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US341537A
Cited
US1295213A
Cited
US1381371A
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US1570733A
Cited
FR706513A
Cited
US2192450A
Cited
US2418392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |