US2587220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone memorandum device or holder
Assignee: Individual
•
Filing: 1948-04-13
•
Granted: 1952-02-26
•
Expires: 1968-04-13
Abstract
No abstract record available.
Inventors
- 👤 Andrew A Ribaudo
- 👤 Orilia James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:11
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1425841A
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US1491331A
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US1575353A
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US1812964A
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US1949447A
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US2108526A
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US2129876A
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US2342348A
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US2268248A
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US2512457A
Cited
US2516592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |