US3597183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trifluoromethane-ethane azeotropic composition
Assignee: Honeywell International Inc
•
Filing: 1967-05-15
•
Granted: 1971-08-03
•
Expires: 1987-05-15
Abstract
Abstract A LOW BOILING AZEOTROPIC MIXTURE, AND EQUIVALENT MIXTURES, CONSISTING OF TIRFLUOROMETHANE AND ETHANE, USEFUL AS REFRIGERANTS.
Inventors
- 👤 Kevin P Murphy
- 👤 Sabatino R Orfeo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:57
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |