Patent US3634255A successfully refreshed from Google Patents.
US3634255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel fluorocarbon composition
Assignee: Honeywell International Inc
•
Filing: 1968-10-03
•
Granted: 1972-01-11
•
Expires: 1988-10-03
Abstract
Abstract DICHLORODIFLUOROMETHANE (CC12F2) AND MONOCHLOROFLUOROMETHANE (CH2C1F), IN CERTAIN PROPORTIONS, FORM AN AZEOTROPE AND ESSENTIALLY AZEOTROPIC MIXTURES, WHICH ARE CONSTANT BOILING, OR ESSENTIALLY CONSTANT BOILING, AND WHICH MIXTURES POSSESS REFRIGERATION CAPACITIES HIGHER THAN EITHER OF THE CC12F2 AND CH2C1F COMPONENTS ALONE, WITH ONLY A SMALL INCREASE IN PRESSURE. THESE MIXTURES ARE SPECIALLY ADAPTED FOR USE IN SYSTEMS HAVING HIGH CONDENSING TEMPERATURES SUCH AS AUTOMOBILE AIR CONDITIONING SYSTEMS.
Inventors
- 👤 Kevin Paul Murphy
- 👤 Sabatino Robert Orfeo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:29
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C09K2205/00; C09K2205/32
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |