Patent US3001970A successfully refreshed from Google Patents.
US3001970A
Expired / Lapsed
US
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Stabilization of polymers of vinylidene chloride
Assignee: BASF SE
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Filing: 1956-04-20
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Granted: 1961-09-26
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Expires: 1976-04-20
Abstract
No abstract record available.
Inventors
- 👤 Ebel Friedrich
- 👤 Burger Karl
- 👤 Herrle Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/07; C08K5/13; C08K5/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A COMPOSITION OF MATTER CONTAINING A POLYMER OF 40% TO 100% VINYLEDENE CHLORIDE AND 60% TO 0% OF AT LEAST ONE OTHER MONOMERIC OLEFINIC COMPOUND HAVING A TERMINAL METHYLENE GROUP AND, AS A LIGHT STABILIZER, A 2HYDROXY-DIBENZOYLMETHANE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
41 words
A COMPOSITION OF MATTER CONTAINING A POLYMER OF 40% TO 100% VINYLEDENE CHLORIDE AND 60% TO 0% OF AT LEAST ONE OTHER MONOMERIC OLEFINIC COMPOUND HAVING A TERMINAL METHYLENE GROUP AND, AS A LIGHT STABILIZER, A 2HYDROXY-DIBENZOYLMETHANE OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2394689A
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US2434496A
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US2552328A
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US2530273A
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US2601255A
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US2807604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |