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US3391796A
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Assignee: THOMAS L CROSS
•
Filing: 1965-12-23
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Granted: 1968-07-09
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:53
CPC Classifications
G; G09; G09F; G09F15/00; G09F15/0087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US943821A
Cited
US1116484A
Cited
US1240634A
Cited
US2220189A
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US2337154A
Cited
US2488535A
Cited
US3017999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |