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US3041864A
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Assignee: McGraw Edison Co
•
Filing: 1960-01-12
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Granted: 1962-07-03
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Expires: 1980-01-12
Abstract
No abstract record available.
Inventors
- 👤 Clifford F Czech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:18
CPC Classifications
D; D06; D06F; D06F39/00; D06F39/10; D06F13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE149269C
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US1092640A
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US2119677A
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US2298624A
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US2498894A
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US2481979A
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US2909051A
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US2792701A
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US2973636A
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US2916900A
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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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |