US2500218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing 1, 1, 1-trifluoro-2-bromoethane
Assignee: Eastman Kodak Co
•
Filing: 1947-10-24
•
Granted: 1950-03-14
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Expires: 1967-10-24
Abstract
No abstract record available.
Inventors
- 👤 Edmund B Towne
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:55
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/20; C07C17/202; C07C17/208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
THE PROCESS OF PREPARING 1,1,1-TRIFLUORO-2BROMOETHANE WHICH COMPRISES HEATING
Claim 2
Dependent Claim
8 words
THE PROCESS OF PREPARING 1,1,1-TRIFLUORO-2BROMOETHANE WHICH COMPRISES HEATING
References Cited (Backward Citations)
US2024008A
Cited
US2024095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |