US3038994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive recorder
Assignee: 3M Co
•
Filing: 1957-05-20
•
Granted: 1962-06-12
•
Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Harold H Nelson
- 👤 Arthur R Kotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:07
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/14; G06K1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2495301A
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US2501904A
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US2736023A
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US1592348A
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US2740896A
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US2697649A
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US2740895A
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US2622229A
Cited
US2749482A
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US2891165A
Cited
US2844733A
Cited
US2873408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |