US3242807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet absorbing composition
Assignee: Union Oil Company of California
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Filing: 1961-12-26
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Granted: 1966-03-29
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Donald L Klass
- 👤 John B Braunwarth
- 👤 Rai Charanjit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:24
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61Q; A61Q17/00; A61Q17/04; B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/122; B01J19/123; C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/35; C09; C09K; C09K15/00; C09K15/04; C09K15/30; G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
THE METHOD OF PROTECTING MATERIALS FROM ULTRAVIOLET RAYS WHICH CONSISTS IN INTERPOSING BETWEEN THE SOURCE OF ULTRAVIOLET RAYS AND SAID MATERIAL A TRANSPARENT PLASTIC BARRIER CONTAINING ABOUT 0.05 TO 8.0% BY WEIGHT OF 1,4BIS(2-NAPHTHOXAZOYL)BUTANE.
Claim 2
Independent Claim
34 words
THE METHOD OF PROTECTING MATERIALS FROM ULTRAVIOLET RAYS WHICH CONSISTS IN INTERPOSING BETWEEN THE SOURCE OF ULTRAVIOLET RAYS AND SAID MATERIAL A TRANSPARENT PLASTIC BARRIER CONTAINING ABOUT 0.05 TO 8.0% BY WEIGHT OF 1,4BIS(2-NAPHTHOXAZOYL)BUTANE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |