Patent US3449261A successfully refreshed from Google Patents.
US3449261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-foaming wetting agents
Assignee: FMC Corp
•
Filing: 1966-02-01
•
Granted: 1969-06-10
•
Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 John M Ross Jr
- 👤 Paul E Levesque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:13
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0026; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/02; Y10S516/03; Y10S516/07
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2794004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |