US3834929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color developer sheet for pressure sensitive recording paper
Assignee: Fujifilm Holdings Corp
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Filing: 1971-12-16
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Granted: 1974-09-10
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Expires: 1991-12-16
Abstract
Abstract A COLOR DEVELOPER SHEET FOR PRESSURE SENSITIVE RECORDING PAPER COMPRISING A COLOR DEVELOPER LAYER CONTAINING A METALLIC COMPOUND OF A PHENOL COMPOUND, SAID PHENOL COMPOUND PKA BELOW 8.
Inventors
- 👤 H Kato
- 👤 T Hayashi
- 👤 S Ishige
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:34
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |