US2568264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telegraphic selecting apparatus
Assignee: AT&T Teletype Corp
•
Filing: 1947-04-07
•
Granted: 1951-09-18
•
Expires: 1967-04-07
Abstract
No abstract record available.
Inventors
- 👤 Walter J Zenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:47
CPC Classifications
H; H01; H01H; H01H67/00; H01H67/22; H01H67/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1904164A
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US2334205A
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US2452568A
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US2404814A
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US2440118A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |