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US3480664A
Expired / Lapsed
US
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2,3-bis(heptafluoroisopropoxy)-r-propyl acrylate
Assignee: United States Department of Agriculture
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Filing: 1966-06-07
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Granted: 1969-11-25
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Expires: 1986-06-07
Abstract
No abstract record available.
Inventors
- 👤 Allen G Pittman
- 👤 William L Wasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:37
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172; Y10T442/2189; Y10T442/2262; Y10T442/227
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2975163A
Cited
US3409602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |