Patent US2518385A successfully refreshed from Google Patents.
US2518385A
Expired / Lapsed
US
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Latching mechanism for telephone sets
Assignee: AT&T Inc
•
Filing: 1947-05-07
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Granted: 1950-08-08
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Expires: 1967-05-07
Abstract
No abstract record available.
Inventors
- 👤 Oscar A Shann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/04; H04M1/06; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/082; Y10T292/0911; Y10T292/0921; Y10T292/0922; Y10T292/0924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US243161A
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US780417A
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US1053765A
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FR541874A
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US1475526A
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US1580666A
Cited
US2078321A
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US2355464A
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US2380782A
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US2428091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |