US2500388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon ethers
Assignee: 3M Co
•
Filing: 1948-07-21
•
Granted: 1950-03-14
•
Expires: 1968-07-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Simons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:45
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C43/123; C07C43/126; C25; C25B; C25B3/00; C25B3/01; C25B3/07; C25B3/11; C25B3/20; C25B3/27; C25B3/28; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2213/00; C10M2213/04; C10M2213/06; C10N; C10N2040/00; C10N2040/08; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AS NEW AND USEFUL COMPOSITIONS OF MATTER, SATURATED ALIPHATIC FLUOROCARBON OTHERS.
Claim 2
Dependent Claim
11 words
AS NEW AND USEFUL COMPOSITIONS OF MATTER, SATURATED ALIPHATIC FLUOROCARBON OTHERS.
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) | 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 |