Patent US3423206A successfully refreshed from Google Patents.
US3423206A
Expired / Lapsed
US
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Light-sensitive color forming reproduction materials
Assignee: Kalle GmbH and Co KG
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Filing: 1965-07-06
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Granted: 1969-01-21
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Ernst-August Hackmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:40
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/675; C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D209/00; C07D209/02; C07D209/04; C07D209/08; C07D231/00; C07D231/02; C07D231/10; C07D231/12; C07D231/14; C07D231/18; C07D231/20; C07D231/22; C07D231/26; C07D249/00; C07D249/02; C07D249/08; C07D257/00; C07D257/02; C07D257/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3056673A
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US3095303A
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US3046209A
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US3082086A
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US3109736A
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US3164467A
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US3335008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |