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Patent US3372704A successfully refreshed from Google Patents.
US3372704A
Expired / Lapsed
US
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Degreasing
Assignee: Abrasive Developments Ltd
•
Filing: 1964-08-31
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Granted: 1968-03-12
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Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 Ashworth Norman Ives
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:52
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/02; B08B15/026; B08B3/00; B08B3/006; C; C23; C23G; C23G1/00; C23G1/36; C23G3/00; C23G5/00; C23G5/02; C23G5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1032458A
Cited
US2530054A
Cited
US3116912A
Cited
US2867903A
Cited
US3227167A
Cited
US3219190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |