US2810678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving storage characteristics of wax and product thereof
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-09-23
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Granted: 1957-10-22
•
Expires: 1974-09-23
Abstract
No abstract record available.
Inventors
- 👤 Effron Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:38
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/40; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD OF IMPROVING THE STORAGE CHARACTERISTICS OF WAX SLABS OF CRYSTALLINE PETROLEUM WAX AT TEMPERATURES BETWEEN 90*F. WHICH COMPRISES COATING THE SAID SLABS WITH A LAYER OF WAX HAVING A MELTING POINT BETWEEN BOUT 10*F. HIGHER AND 10*F. LOWER THAN THE MELTING POINT OF THE SLAB, A BLOCKING POINT GREATER THAN THAT OF THE SLAB WAX AND NOT MORE THAN 2* TO 6*F. LOWER THAN ITS OWN MELTING POINT A BOILING POINT SPREAD OF 20* TO 80*F.
Claim 2
Independent Claim
78 words
THE METHOD OF IMPROVING THE STORAGE CHARACTERISTICS OF WAX SLABS OF CRYSTALLINE PETROLEUM WAX AT TEMPERATURES BETWEEN 90*F. WHICH COMPRISES COATING THE SAID SLABS WITH A LAYER OF WAX HAVING A MELTING POINT BETWEEN BOUT 10*F. HIGHER AND 10*F. LOWER THAN THE MELTING POINT OF THE SLAB, A BLOCKING POINT GREATER THAN THAT OF THE SLAB WAX AND NOT MORE THAN 2* TO 6*F. LOWER THAN ITS OWN MELTING POINT A BOILING POINT SPREAD OF 20* TO 80*F.
References Cited (Backward Citations)
US2643973A
Cited
US2624501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |