US3410686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: International Business Machines Corp
•
Filing: 1964-06-30
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Granted: 1968-11-12
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Merle P Prater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:11
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C5/00; G03C5/60; G03G; G03G13/00; G03G13/06; G03G5/00; G03G5/02; G03G5/026; Y; Y10; Y10S; Y10S430/00; Y10S430/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3224354A
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US3224878A
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US3189455A
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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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |