US2934572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally stable fluoro-olefin telomers and process of preparing same
Assignee: EIDP Inc
•
Filing: 1958-08-15
•
Granted: 1960-04-26
•
Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 Donald R Baer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:39
CPC Classifications
C; C07; C07C; C07C21/00; C07C21/02; C07C21/18; C10; C10M; C10M169/00; C10M169/04; C10M171/00; C10M2203/00; C10M2203/10; C10M2203/1006; C10N; C10N2020/00; C10N2020/01; C10N2020/02; C10N2020/04; C10N2030/00; C10N2030/02; C10N2030/06; C10N2040/00; C10N2040/06; C10N2040/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A LUBRICANT CONSISTING ESSENTIALLY OF A TELOMER HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 800 AND 1250 AND WHICH CONTAINS BETWEEN ABOUT 3 AND 10 UNITS OF THE PERFLUORO- STRUCTURE
Claim 2
Dependent Claim
30 words
A LUBRICANT CONSISTING ESSENTIALLY OF A TELOMER HAVING AN AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 800 AND 1250 AND WHICH CONTAINS BETWEEN ABOUT 3 AND 10 UNITS OF THE PERFLUORO- STRUCTURE
References Cited (Backward Citations)
US2440800A
Cited
US2856440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |