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US3539375A
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US
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Thermo-responsive record sheet
Assignee: Appvion LLC
•
Filing: 1969-03-14
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Granted: 1970-11-10
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Expires: 1989-03-14
Abstract
No abstract record available.
Inventors
- 👤 Henry H Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:51
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/333; B41M5/3333; B41M5/3335; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S430/00; Y10S430/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2770534A
Cited
US2972547A
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US3121650A
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US3244548A
Cited
US3239366A
Cited
US3322557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |