US3409647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain fluorinated carboxylic acids and their derivatives
Assignee: United States Department of Agriculture
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Filing: 1965-06-24
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Granted: 1968-11-05
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Expires: 1985-06-24
Abstract
No abstract record available.
Inventors
- 👤 Allen G Pittman
- 👤 William L Wasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:41
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/13; C07C43/137; C07C59/00; C07C59/125; C07C59/135; C07C59/235; C07C59/305; C07C59/315; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; C10; C10M; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/015; C10N2050/02; C10N2050/10; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/02; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172; Y10T442/2189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3172910A
Cited
US3145222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |