US3405393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data handling system
Assignee: TNC US Holdings Inc
•
Filing: 1965-10-15
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Granted: 1968-10-08
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Expires: 1985-10-15
Abstract
No abstract record available.
Inventors
- 👤 Donald E Haselwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:42
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/14; G06F13/20; G06F13/22; H; H04; H04H; H04H60/00; H04H60/35; H04H60/38; H04H60/41; H04H60/43; H04H60/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2870429A
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US3245040A
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US3072804A
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US3281788A
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US3289170A
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US3283306A
Cited
US3305839A
Cited
US3297996A
Cited
US3333250A
Cited
US3323112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |