US2791570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax coating composition
Assignee: Union Oil Company of California
•
Filing: 1953-02-24
•
Granted: 1957-05-07
•
Expires: 1973-02-24
Abstract
No abstract record available.
Inventors
- 👤 Backlund Peter Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:47
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18; C; C09; C09D; C09D191/00; C09D191/06; C09D191/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A COMPOSITION HAVING A HIGH SEALING STRENGTH AND BEING SUITABLE FOR USE IN COATING FOOD WRAPPING PAPER AND PAPER CONTAINERS, SAID COMPOSITION COMPRISING AT LEAST TWO DIFFERENT DISTILLATE FRACTIONS OF SLACK WAX, A LOWER BOILING FRACTION AND A HIGHER BOILING FRACTION, WHICH FRACTIONS HAVE BEEN SEPARATELY DEOILED, AND BETWEEN ABOUT 0.5% AND 5% BASED ON THE WAX OF A POLYOEFIN HAVING S MOLECULAR WEIGHT BETWEEN ABOUT 8,000 AND ABOUT 20,000, SAID LOWER BOILING FRACTION CONSISTING OF MATERIAL WITHIN THE FIRST 50% OVERHEAD AND SAID HIGHER BOILING FRACTION CONSISTING OF MATERIAL WITHIN THE 50% TO 95% OVERHEAD OBTAINED IN THE FRACTIONAL DISTILLATION OF SLACK WAX.
Claim 2
Dependent Claim
104 words
A COMPOSITION HAVING A HIGH SEALING STRENGTH AND BEING SUITABLE FOR USE IN COATING FOOD WRAPPING PAPER AND PAPER CONTAINERS, SAID COMPOSITION COMPRISING AT LEAST TWO DIFFERENT DISTILLATE FRACTIONS OF SLACK WAX, A LOWER BOILING FRACTION AND A HIGHER BOILING FRACTION, WHICH FRACTIONS HAVE BEEN SEPARATELY DEOILED, AND BETWEEN ABOUT 0.5% AND 5% BASED ON THE WAX OF A POLYOEFIN HAVING S MOLECULAR WEIGHT BETWEEN ABOUT 8,000 AND ABOUT 20,000, SAID LOWER BOILING FRACTION CONSISTING OF MATERIAL WITHIN THE FIRST 50% OVERHEAD AND SAID HIGHER BOILING FRACTION CONSISTING OF MATERIAL WITHIN THE 50% TO 95% OVERHEAD OBTAINED IN THE FRACTIONAL DISTILLATION OF SLACK WAX.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |