US3173872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions of fluorocarbons
Assignee: Honeywell International Inc
•
Filing: 1962-03-12
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Granted: 1965-03-16
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Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Robert D Broadley
- 👤 Lyman F Kells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:46
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A LOW BOILING COMPOSITION CONSISTING OF A MIXTURE OF DIFLUOROMETHANE AND PERFLUOROPROPANE, IN WHICH THE MOLE PERCENT OF PERFLUOROPROPANE IS WITHIN THE RANGE OF ABOUT 10-62.
Claim 2
Dependent Claim
26 words
A LOW BOILING COMPOSITION CONSISTING OF A MIXTURE OF DIFLUOROMETHANE AND PERFLUOROPROPANE, IN WHICH THE MOLE PERCENT OF PERFLUOROPROPANE IS WITHIN THE RANGE OF ABOUT 10-62.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |