Patent US3511804A successfully refreshed from Google Patents.
US3511804A
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US
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Protection of organic materials from ultraviolet radiation
Assignee: BASF Schweiz AG
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Filing: 1967-01-25
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Granted: 1970-05-12
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Expires: 1987-01-25
Abstract
No abstract record available.
Inventors
- 👤 Max Duennenberger
- 👤 Christian Luethi
- 👤 Hans Rudolf Biland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:54
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; C; C08; C08K; C08K5/00; C08K5/16; C08K5/20; C09; C09K; C09K15/00; C09K15/04; C09K15/20; C09K15/22; G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3318842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |