US3764358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sperm oil substitute and its use in leather treatment
Assignee: Diamond Shamrock Corp
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Filing: 1971-10-18
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Granted: 1973-10-09
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Expires: 1991-10-18
Abstract
Abstract A SUBSTITUTE FOR SPERM OIL IS PREPARED CONSISTING OF A BLEND OF ESTERS WITH UNSATURATED OILS. THIS BLEND MAY THEN BE SULFATED. THE SULFATED BLEND HAS UTILITY IN LEATHER TREATMENT.
Inventors
- 👤 J Papalos
- 👤 C Retzsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:47
CPC Classifications
C; C14; C14C; C14C9/00; C14C9/02; C10; C10M; C10M2219/00; C10M2219/04; C10M2219/044; Y; Y10; Y10T; Y10T428/00; Y10T428/4935
Claims Analysis
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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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |