Patent US3216944A successfully refreshed from Google Patents.
US3216944A
Expired / Lapsed
US
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Stabilized fabric softener composition
Assignee: Procter and Gamble Co
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Filing: 1961-09-11
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Granted: 1965-11-09
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Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Clair D Fredrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:50
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/432
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
THE PROCESS OF MAKING A STABLE FABRIC SOFTENER COMPOSITION WHICH COMPRISES DISSOLVING ABOUT 1 TO ABOUT 18 PARTS BY WEIGHT OF A DERIVATIVE OF DIPHENYL UREA SELECTED FROM THE GROUP HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
34 words
THE PROCESS OF MAKING A STABLE FABRIC SOFTENER COMPOSITION WHICH COMPRISES DISSOLVING ABOUT 1 TO ABOUT 18 PARTS BY WEIGHT OF A DERIVATIVE OF DIPHENYL UREA SELECTED FROM THE GROUP HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |