US3369435A
Expired / Lapsed
US
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Method and apparatus for fibrillating
Assignee: Phillips Petroleum Co
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Filing: 1965-12-06
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Granted: 1968-02-20
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Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Harold D Boultinghouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:57
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/423; B; B26; B26F; B26F1/00; B26F1/24; Y; Y10; Y10S; Y10S264/00; Y10S264/47; Y10T; Y10T225/00; Y10T225/10; Y10T225/12; Y10T83/00; Y10T83/04; Y10T83/0481; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4812; Y10T83/929; Y10T83/9314
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3273771A
Cited
US3302501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |