US2704776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making of fluorocarbon derivatives
Assignee: 3M Co
•
Filing: 1953-02-24
•
Granted: 1955-03-22
•
Expires: 1973-02-24
Abstract
No abstract record available.
Inventors
- 👤 Zerte James D La
- 👤 Wilbur H Pearlson
- 👤 Edward A Kauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:55
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
THE METHOD OF MAKING FLUROCARBON BROMIDES WHICH COMPRISES HEATING
Claim 2
Independent Claim
9 words
THE METHOD OF MAKING FLUROCARBON BROMIDES WHICH COMPRISES HEATING
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) | 1958-03-21 | 1958-09-20 | 1959-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-21 | 1962-09-20 | 1963-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-21 | 1966-09-20 | 1967-03-22 | $7700.00 | Window Closed / Lapsed |