US2595911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paraffin wax-styrene isobutylene copolymer composition
Assignee: Standard Oil Development Co
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Filing: 1944-12-29
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Granted: 1952-05-06
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Expires: 1964-12-29
Abstract
No abstract record available.
Inventors
- 👤 David W Young
- 👤 William J Sparks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:35
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C08; C08L; C08L91/00; C08L91/06; C08K; C08K5/00; C08K5/01; C08L91/08; C08L2205/00; C08L2205/02; C08L2666/00; C08L2666/02; C08L2666/04; C09K2200/00; C09K2200/06; C09K2200/0615; C09K2200/0617
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
COMPOSITION COMPRISING 97% TO 99.75% PARAFFIN WAX HAVING A MELTING POINT BETWEEN 110* F. AND 195* C., HAVING HOMOGENEOULSY DISSOLVED THEREIN 0.25% TO 3% BY WEIGHT OF A HIGH MOLECULAR WEIGHT SOLID STYRENE-ISOBUTYLENE COPOLYMER HAVING A COMBINED STYRENE CONTENT OF ABOUT 20%. BY WIGHT, AND HAVING A INTRINSIC VISCOSITY OF 0.6 TO 3.0.
Claim 2
Dependent Claim
53 words
COMPOSITION COMPRISING 97% TO 99.75% PARAFFIN WAX HAVING A MELTING POINT BETWEEN 110* F. AND 195* C., HAVING HOMOGENEOULSY DISSOLVED THEREIN 0.25% TO 3% BY WEIGHT OF A HIGH MOLECULAR WEIGHT SOLID STYRENE-ISOBUTYLENE COPOLYMER HAVING A COMBINED STYRENE CONTENT OF ABOUT 20%. BY WIGHT, AND HAVING A INTRINSIC VISCOSITY OF 0.6 TO 3.0.
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) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |