Patent US3756960A successfully refreshed from Google Patents.
US3756960A
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Pentachlorophenol preservative
Assignee: Dynamit Nobel AG
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Filing: 1971-03-01
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Granted: 1973-09-04
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Expires: 1991-03-01
Abstract
Abstract A PRESERVATIVE WHICH IS LIQUID AT 0*C. AND WHICH CONTAINS A PREDOMINANT AMOUNT OF PENTACHLOROPHENOL ESTERS OF FATTY ACIDS COMPRISING, IN ADDITION TO PENTACHLOROPHENOL ESTER MIXTURES OF FATTY ACIDS HAVING FROM 6 TO 12 CARBON ATOMS, ESTERS WHICH ARE LIQUID AT 0*C. CONSISTING ESSENTIALLY OF LOWER CHLORINATED OR NON-CHLORINATED PHENOL OR ALKYLPHENOL ESTERS OF FATTY ACIDS HAVING FROM 1 TO 12 CARBON ATOMS.
Inventors
- 👤 R Junghahnel
- 👤 A Pastura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:27
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/24; C07C39/26; C07C39/27; C07C39/36; D; D06; D06M; D06M13/00; D06M13/10; D06M13/224; D06M13/236
Claims Analysis
Total Claims: 0
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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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |