US3305494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxazolidonyl sulfones and method of making same
Assignee: Individual
•
Filing: 1963-04-12
•
Granted: 1967-02-21
•
Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 Charles H Schramm
- 👤 Edward J Friihauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:33
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/775; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/18; C07D263/20; C07D263/26; C08G18/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A PROCESS FOR PRODUCING (2-OXAZOLIDON-3-YL) SULFONE WHICH COMPRISES REACTING SULFURYLDIISOCYANATE WITH AN EPOXIDE COMPOUND, SAID EPOXIDE CHRACTERIZED BY HAVING AN OXYGEN ATOM ATTACHED TO TWO ADJACENT CARBON ATOMS.
Claim 2
Dependent Claim
28 words
A PROCESS FOR PRODUCING (2-OXAZOLIDON-3-YL) SULFONE WHICH COMPRISES REACTING SULFURYLDIISOCYANATE WITH AN EPOXIDE COMPOUND, SAID EPOXIDE CHRACTERIZED BY HAVING AN OXYGEN ATOM ATTACHED TO TWO ADJACENT CARBON ATOMS.
References Cited (Backward Citations)
US2374136A
Cited
US3020262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |