Patent US3389994A successfully refreshed from Google Patents.
US3389994A
Expired / Lapsed
US
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Photographic light-sensitive material
Assignee: BASF Schweiz AG
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Filing: 1964-12-15
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Granted: 1968-06-25
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Expires: 1984-12-15
Abstract
No abstract record available.
Inventors
- 👤 Piller Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:26
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/046; C09B23/00; C09B23/02; C09B23/04; C09B62/002; C09B62/0025; G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/832; G03C7/00; G03C7/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |