Patent US2602815A successfully refreshed from Google Patents.
US2602815A
Expired / Lapsed
US
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Sulfur-containing polycarboxylic acids
Assignee: Goodrich Corp
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Filing: 1947-06-18
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Granted: 1952-07-08
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Expires: 1967-06-18
Abstract
No abstract record available.
Inventors
- 👤 James T Gregory
- 👤 Jacob E Jansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:06
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0071; C07; C07C; C07C323/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE METHOD WHICH COMPRISES REACTING A COMPOUND OF THE FORMULA A(CL)N WHEREIN A IS A SATURATED ALIPHATIC RADICAL HAVING FROM 2 TO 4 CONNECTING VALENCES EACH ON A CARBON ATOM AND CONTAINING ONLY ATOMS OF CARBON, HYDROGEN AND A CHALCOGEN OCCURRING IN ONE OF THE SHORT PERIODS OF THE PERIODIC TABLE, THERE BEING PRESENT FROM 2 TO 8 CARBON ATOMS AND FROM 1 TO 2 CHALCOGEN ATOMS EACH OF WHICH IS PRESENT IN THE DIVALENT STATE AND IS CONNECTED BY EACH OF ITS TWO VALENCES TO TWO DIFFERENT CARBON ATOMS, AND N IS A NUMBER EQUAL TO THE VALENCE OF A, WITH A MERCAPTOSUBSTITUTED CARBOXYLIC ACID OF THE FORMULA
Claim 2
Independent Claim
109 words
THE METHOD WHICH COMPRISES REACTING A COMPOUND OF THE FORMULA A(CL)N WHEREIN A IS A SATURATED ALIPHATIC RADICAL HAVING FROM 2 TO 4 CONNECTING VALENCES EACH ON A CARBON ATOM AND CONTAINING ONLY ATOMS OF CARBON, HYDROGEN AND A CHALCOGEN OCCURRING IN ONE OF THE SHORT PERIODS OF THE PERIODIC TABLE, THERE BEING PRESENT FROM 2 TO 8 CARBON ATOMS AND FROM 1 TO 2 CHALCOGEN ATOMS EACH OF WHICH IS PRESENT IN THE DIVALENT STATE AND IS CONNECTED BY EACH OF ITS TWO VALENCES TO TWO DIFFERENT CARBON ATOMS, AND N IS A NUMBER EQUAL TO THE VALENCE OF A, WITH A MERCAPTOSUBSTITUTED CARBOXYLIC ACID OF THE FORMULA
References Cited (Backward Citations)
US2393327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |