Patent US3382267A successfully refreshed from Google Patents.
US3382267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferrocene cyclic thioethers
Assignee: Colgate Palmolive Co
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Filing: 1965-10-07
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Granted: 1968-05-07
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Expires: 1985-10-07
Abstract
No abstract record available.
Inventors
- 👤 John T Suh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:10
CPC Classifications
C; C07; C07F; C07F17/00; C07F17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A COMPOUND OF THE FORMULA 1,1''-(-C(-R1)(-R2)-S-C(-R3)(-R4)-)FERROCENE WHEREIN R1, R2, R3 AND R4 ARE SELECTED FROM HYDROGEN, ALKYL, ARYL, ARALKYL, CYCLOALKYL AND CYCLOALKYL-LOWERALKYL.
Claim 2
Dependent Claim
22 words
A COMPOUND OF THE FORMULA 1,1''-(-C(-R1)(-R2)-S-C(-R3)(-R4)-)FERROCENE WHEREIN R1, R2, R3 AND R4 ARE SELECTED FROM HYDROGEN, ALKYL, ARYL, ARALKYL, CYCLOALKYL AND CYCLOALKYL-LOWERALKYL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |