US2819185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stressing of petroleum wax to improve physical properties thereof
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-02-08
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Granted: 1958-01-07
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Expires: 1975-02-08
Abstract
No abstract record available.
Inventors
- 👤 Mack Charles
- 👤 Tiedje John Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:15
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
43 words
A PROCESS FOR INCREASING THE HARDNESS OF PETROLEUM WAX ON A WAXED PAPER WHICH COMPRISES PLASTICALLY DEFORMING SAID WAX BY PASSING SAID PAPER BETWEEN PRESSURE ROLLS, THE PRESSURE EXERTED BY SAID ROLLS BEING OF INSUFFICIENT DURATION TO CAUSE PLASTIC FLOW OF SAID WAX.
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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |