Patent US3432432A successfully refreshed from Google Patents.
US3432432A
Expired / Lapsed
US
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Perfluoropolyether greases thickened with metal-free phthalocyanine
Assignee: Chevron USA Inc
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Filing: 1967-02-10
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Granted: 1969-03-11
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Expires: 1987-02-10
Abstract
No abstract record available.
Inventors
- 👤 John L Dreher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:04
CPC Classifications
C; C10; C10M; C10M7/00; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2213/00; C10M2213/04; C10M2213/06; C10M2215/00; C10M2215/22; C10M2215/225; C10M2215/227; C10N; C10N2010/00; C10N2010/02; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/02; C10N2040/12; C10N2040/13; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |