Patent US3413221A successfully refreshed from Google Patents.
US3413221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wash agents
Assignee: Henkel AG and Co KGaA
•
Filing: 1966-07-28
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Granted: 1968-11-26
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Expires: 1986-07-28
Abstract
No abstract record available.
Inventors
- 👤 Gotte Ernst
- 👤 Stein Werner
- 👤 Weiss Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:03
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C11; C11D; C11D1/00; C11D1/02; C11D1/37; C11D1/12; C11D1/14; C11D1/22; C11D1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2043476A
Cited
US2303212A
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US2460968A
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US2806044A
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US2876200A
Cited
US2972583A
Cited
US3338838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |