US3826631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Odorant composition for liquefied petroleum gases
Assignee: Pennwalt Corp
•
Filing: 1972-03-27
•
Granted: 1974-07-30
•
Expires: 1992-03-27
Abstract
Abstract IMPROVED ODORANT COMPOSITION FOR LIQUEFIED PETROLEUM GASES INCLUDES AN AZEOTROPIC MIXTURE OF AN ORGANIC SULFUR COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYL MERCAPTAN AND DIMETHYL SULFIDE AND AT LEAST ONE RELATIVELY NON-ODOROUS, CHEMICALLY INERT MATERIAL, SUCH AS METHYL FORMATE, N-PENTANE, IOSPENTANE, AMYLENE, ISOAMYLENE, CHLOROPROPANE AND THE LIKE, CAPABLE OF FORMING A MINIMUM BOILING POINT AZEOTROPE WITH THE ORGANIC SULFUR ODORANT COMPOUND PRESENT.
Inventors
- 👤 A Nevers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:55
CPC Classifications
C; C10; C10L; C10L3/00; C10L3/003; C10L3/006
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |