US2579476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine room telegraph
Assignee: Individual
•
Filing: 1946-03-14
•
Granted: 1951-12-25
•
Expires: 1966-03-14
Abstract
No abstract record available.
Inventors
- 👤 Herman H Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:56
CPC Classifications
G; G08; G08B; G08B9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191007154A
Cited
US1197212A
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US1135040A
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US1099673A
Cited
US1419708A
Cited
DE412326C
Cited
US1607917A
Cited
US2184355A
Cited
US2348158A
Cited
US2368300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |