US2546328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carnauba wax substitute
Assignee: Shell Development Co
•
Filing: 1948-09-27
•
Granted: 1951-03-27
•
Expires: 1968-09-27
Abstract
No abstract record available.
Inventors
- 👤 Karelin G Arabian
- 👤 August A Schaerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:02
CPC Classifications
C; C08; C08L; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A CARNAUBA WAX COMPOSITION SUBSTITUTE CONSISTING ESSENTIALLY OF 30-70 PER CENT EACH OF A MINERAL OIL OF LUBRICATING OIL VISCOSITY AND OF A MIXTURE OF STRAIGHT-CHAIN MICROCRYSTALLINE HYDROCARBON WAXES, THE MOLECULAR WEIGHT OF WHICH ARE FROM 550 TO 900, THE MAJOR PORTION OF WHICH HAVE MOLECULAR WEIGHTS FROM 600 TO 750.
Claim 2
Dependent Claim
51 words
A CARNAUBA WAX COMPOSITION SUBSTITUTE CONSISTING ESSENTIALLY OF 30-70 PER CENT EACH OF A MINERAL OIL OF LUBRICATING OIL VISCOSITY AND OF A MIXTURE OF STRAIGHT-CHAIN MICROCRYSTALLINE HYDROCARBON WAXES, THE MOLECULAR WEIGHT OF WHICH ARE FROM 550 TO 900, THE MAJOR PORTION OF WHICH HAVE MOLECULAR WEIGHTS FROM 600 TO 750.
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) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |