Patent US3336421A successfully refreshed from Google Patents.
US3336421A
Expired / Lapsed
US
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O, o-dialkyl s-(polyhydroxyaryl)-phosphorothiolothionates
Assignee: Eastman Kodak Co
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Filing: 1963-02-28
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Granted: 1967-08-15
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Richard L Mcconnell
- 👤 Jr Newton H Shearer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:17
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
AN ORGANO PHOSPHOROUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF O,O-DIISOPROPYL S2,O,5,6-TETRAHYDROXYPHENYL PHOSPHOROTHIOLOTHIONATE, O,O-DIETHYL S(2,5 - DIHYDROXY-6-NITROPHENYL)PHOSPHOROTHIOLOTHIONATE, O,O-DIETHYL S - (4,5-DIHYDROXY - 2-BIPHENYL)PHOSPHORORTHIOLOTHIONATE AND O,O-DIETHYL S-(4,6-DICHLORO-2,5-DIHYDROXYPHENYL) PHOSPHOROTHIOLOTHIONATE.
Claim 2
Dependent Claim
27 words
AN ORGANO PHOSPHOROUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF O,O-DIISOPROPYL S2,O,5,6-TETRAHYDROXYPHENYL PHOSPHOROTHIOLOTHIONATE, O,O-DIETHYL S(2,5 - DIHYDROXY-6-NITROPHENYL)PHOSPHOROTHIOLOTHIONATE, O,O-DIETHYL S - (4,5-DIHYDROXY - 2-BIPHENYL)PHOSPHORORTHIOLOTHIONATE AND O,O-DIETHYL S-(4,6-DICHLORO-2,5-DIHYDROXYPHENYL) PHOSPHOROTHIOLOTHIONATE.
References Cited (Backward Citations)
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Cited
US3076008A
Cited
US2954318A
Cited
US3056825A
Cited
US2910402A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |