Patent US2946954A successfully refreshed from Google Patents.
US2946954A
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US
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Indicator
Assignee: International Business Machines Corp
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Filing: 1957-01-28
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Granted: 1960-07-26
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Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Clyde J Fitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:21
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/02; H03J1/04; G; G01; G01R; G01R19/00; G01R19/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |