US3334147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defoaming and surface active compositions
Assignee: Ecolab Inc
•
Filing: 1962-02-28
•
Granted: 1967-08-01
•
Expires: 1982-02-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Brunelle
- 👤 Larry M Rue
- 👤 Samuel B Crecelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:49
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/722; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/10; C07C43/11; C11D3/00; C11D3/0005; C11D3/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
4 words
COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
US2856434A
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US2903485A
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US2596091A
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US2826552A
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US2828265A
Cited
US2836626A
Cited
US2982739A
Cited
US3048548A
Cited
US3190926A
Cited
US3211651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |