US3511973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermo-resistive recording technique
Assignee: Unisys Corp
•
Filing: 1965-12-27
•
Granted: 1970-05-12
•
Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Donald T Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:19
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/12; G06K1/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2613252A
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US2542478A
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US2748487A
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US2777044A
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US3074066A
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US3099578A
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US3119919A
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US3253126A
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US3265524A
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US3245054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |