US2971806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In-and-out pager cabinet
Assignee: Individual
•
Filing: 1957-07-18
•
Granted: 1961-02-14
•
Expires: 1977-07-18
Abstract
No abstract record available.
Inventors
- 👤 Norman H Andreasen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:03
CPC Classifications
G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US332661A
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US2138894A
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US2106912A
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US2412516A
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US2474157A
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US2586930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |