US2905690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylation of oxazolidinones
Assignee: —
•
Filing: —
•
Granted: 1959-09-22
•
Expires: 1976-09-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:27
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/18; C07D263/20; C07D263/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
METHOD WHICH COMPRISES MIXING (1) A RING SUB STITUTED 2-OXAZOLIDINONE STARTING COMPOUND OF THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
16 words
METHOD WHICH COMPRISES MIXING (1) A RING SUB STITUTED 2-OXAZOLIDINONE STARTING COMPOUND OF THE STRUCTURAL 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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |