US2527233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of organosilicon fluorides
Assignee: Individual
•
Filing: 1947-01-27
•
Granted: 1950-10-24
•
Expires: 1967-01-27
Abstract
No abstract record available.
Inventors
- 👤 Frank J Sowa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:47
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/121; C07F7/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
THE METHOD OF PREPARING A COMPOUND HAVING THE GENERIC FORMULA
Claim 2
Independent Claim
10 words
THE METHOD OF PREPARING A COMPOUND HAVING THE GENERIC FORMULA
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) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |