US2875169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylidene chloride polymer composition plasticized with di-n-propyl tetrachlorophthalate and process of extruding same
Assignee: Bridgestone Firestone Inc
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Filing: 1953-12-11
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Granted: 1959-02-24
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Expires: 1973-12-11
Abstract
No abstract record available.
Inventors
- 👤 Robert J Reid
- 👤 Jacob D Matlack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
45 words
A PLASTICIZED COMPOSITION COMPRISING A CRYSTALLINE POLYMERIC RESIN SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYLIDENE CHLORIDE AND COPOLYMERS THEREOF WITH UP TO 15 PERCENT (BASED ON THE WEIGHT OF SAID COPOLYMERS) OF OTHER UNSATURATED COMPOUNDS COPOLYMERIZED THEREWITH AND, AS PLASTICIZER THEREFOR, DI-NPROPYL TETRACHLOROPHTHALATE.
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |