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US3423865A
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Assignee: THOMAS K C HARDESTY
•
Filing: 1965-10-22
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Granted: 1969-01-28
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 George K C Hardesty
- 👤 Thomas K C Hardesty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:15
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126786A
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US1218082A
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US1421509A
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US1777866A
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US1857882A
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US2560392A
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US2590240A
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US2793356A
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US2863240A
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US3176578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |