US3399144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defoaming agent
Assignee: Procter and Gamble Co
•
Filing: 1966-01-04
•
Granted: 1968-08-27
•
Expires: 1986-01-04
Abstract
No abstract record available.
Inventors
- 👤 Harley D Hathaway
- 👤 Bernard J Heile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:45
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0026; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C08; C08G; C08G18/00; C08G18/02; C08G18/025; C11D1/00; C11D1/02; C11D1/34; C11D1/345
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2715613A
Cited
US2753309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |