Patent US3311110A successfully refreshed from Google Patents.
US2422698A
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Time measuring system
Assignee: AT&T Inc
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Filing: 1942-11-05
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Granted: 1947-06-24
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Expires: 1962-11-05
Abstract
No abstract record available.
Inventors
- 👤 Ohmer R Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:00
CPC Classifications
G; G04; G04F; G04F10/00; G04F10/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB355705A
Cited
US1932589A
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US2050059A
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US2143035A
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US2158285A
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US2305625A
Cited
US2306386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |