US2644008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of decomposition of chloroalkyl aryloxyalkyl sulfites
Assignee: Uniroyal Inc
•
Filing: 1951-04-04
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Granted: 1953-06-30
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Expires: 1971-04-04
Abstract
No abstract record available.
Inventors
- 👤 Harry D Glenn
- 👤 Meuser Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:12
CPC Classifications
C; C07; C07C; C07C301/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A DI-ESTER OF SULFUROUS ACID WHEREIN ONE OF THE ESTERIFYING GROUPS IS A CHLOROALKYL RADICAL CONTAINING 2 TO 4 CARBON ATOMS AND 1 TO 3 CHLORINE ATOMS AND HAVING NO CHLORINE ATOM ATTACHED TO THE ALPHA CARBON ATOM, AND WHEREIN THE OTHER ESTERIFYING GROUP IS A RADICAL OF THE FORMULA R-O-X-, WHEREIN R IS SELECTED FROM THE CLASS CONSISTING OF MONOVALENT ARYL HYDROCARBON RADICALS AND SUCH RADICALS SUBSTITUTED BY AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ALKYL, ALKOXY, CYCLOALKYL, HALO AND NITRO, AND X IS AN ALKYLENE RADICAL HAVING 2 TO 4 CARBON ATOMS, SAID SULFITE ESTER HAVING ADMIXED THEREWITH 0.1 TO 5% OF ITS WEIGHT OF AN ALKYLENE OXIDE.
Claim 2
Dependent Claim
112 words
A DI-ESTER OF SULFUROUS ACID WHEREIN ONE OF THE ESTERIFYING GROUPS IS A CHLOROALKYL RADICAL CONTAINING 2 TO 4 CARBON ATOMS AND 1 TO 3 CHLORINE ATOMS AND HAVING NO CHLORINE ATOM ATTACHED TO THE ALPHA CARBON ATOM, AND WHEREIN THE OTHER ESTERIFYING GROUP IS A RADICAL OF THE FORMULA R-O-X-, WHEREIN R IS SELECTED FROM THE CLASS CONSISTING OF MONOVALENT ARYL HYDROCARBON RADICALS AND SUCH RADICALS SUBSTITUTED BY AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ALKYL, ALKOXY, CYCLOALKYL, HALO AND NITRO, AND X IS AN ALKYLENE RADICAL HAVING 2 TO 4 CARBON ATOMS, SAID SULFITE ESTER HAVING ADMIXED THEREWITH 0.1 TO 5% OF ITS WEIGHT OF AN ALKYLENE OXIDE.
References Cited (Backward Citations)
US1944274A
Cited
US2529494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |