Patent US2695317A successfully refreshed from Google Patents.
US2695317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 2'-dihydroxy-3, 5, 5'-trichlorodiphenyl sulfide and preparation thereof
Assignee: STWB Inc
•
Filing: 1952-04-10
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Granted: 1954-11-23
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Expires: 1972-04-10
Abstract
No abstract record available.
Inventors
- 👤 Royal A Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:46
CPC Classifications
C; C07; C07C; C07C323/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
2,2''-DIHYDROXY-3,5,5''-TRICHLORODIPHENYL SULFIDE, HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
2,2''-DIHYDROXY-3,5,5''-TRICHLORODIPHENYL SULFIDE, HAVING THE FORMULA
Claim 3
Dependent Claim
17 words
THE PROCESS WHICH COMPRISES INTERACTING 2,2''-DIHYDROXY-5,5''-DICHLORODIPHENYL SULFIDE WITH SULFURYL CHLORIDE, AND ISOLATING THE 2,2''-DIHYDROXY-3,5,5''-TRICHLORODIPHENYL SULFIDE THUS PRODUCED.
Claim 4
Dependent Claim
17 words
THE PROCESS WHICH COMPRISES INTERACTING 2,2''-DIHYDROXY-5,5''-DICHLORODIPHENYL SULFIDE WITH SULFURYL CHLORIDE, AND ISOLATING THE 2,2''-DIHYDROXY-3,5,5''-TRICHLORODIPHENYL SULFIDE THUS PRODUCED.
References Cited (Backward Citations)
GB349004A
Cited
US2353735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |