US2715615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic compositions comprising a vinyl chloride polymer and a high softening point-coal tar pitch
Assignee: Orangeburg Manufacturing Co Inc
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Filing: 1952-09-03
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Granted: 1955-08-16
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Expires: 1972-09-03
Abstract
No abstract record available.
Inventors
- 👤 Bell John M De
- 👤 Mortimer H Nickerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:26
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A THERMOPLASTIC RESIN COMPOSITION, FORM STABLE AT TEMPERATURES UP TO 140* F., COMPRISING VINYL CHLORIDE POLYMER RESIN SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND THE COPOLYMERS OF VINYL CHLORIDE IN WHICH OVER 80% OF THE RESIN CONTENT OF THE COPOLYMER IS VINYL CHLORIDE, AND A LESSER AMOUNT OF COAL TAR PITCH HAVING A SOFTENING POINT BY THE BALL AND RING METHOD OF AT LEAST 160* F. AND FLUID AT THE MOLDING TEMPERATURE OF THE RESIN, SAID PITCH COMPRISING THE SOLE PLASTICIZING AGENT PRESENT IN THE COMPOSITION.
Claim 2
Dependent Claim
88 words
A THERMOPLASTIC RESIN COMPOSITION, FORM STABLE AT TEMPERATURES UP TO 140* F., COMPRISING VINYL CHLORIDE POLYMER RESIN SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND THE COPOLYMERS OF VINYL CHLORIDE IN WHICH OVER 80% OF THE RESIN CONTENT OF THE COPOLYMER IS VINYL CHLORIDE, AND A LESSER AMOUNT OF COAL TAR PITCH HAVING A SOFTENING POINT BY THE BALL AND RING METHOD OF AT LEAST 160* F. AND FLUID AT THE MOLDING TEMPERATURE OF THE RESIN, SAID PITCH COMPRISING THE SOLE PLASTICIZING AGENT PRESENT IN THE COMPOSITION.
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) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |