Patent US3389004A successfully refreshed from Google Patents.
US3389004A
Expired / Lapsed
US
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Ultraviolet light stabilizers for plastic materials
Assignee: Beazer East Inc
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Filing: 1966-02-23
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Granted: 1968-06-18
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Expires: 1986-02-23
Abstract
No abstract record available.
Inventors
- 👤 Dressler Hans
- 👤 Kenneth G Reabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:58
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3062887A
Cited
US2906728A
Cited
US3117129A
Cited
US3143523A
Cited
US3337357A
Cited
US3225000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |