Patent GB1334584A successfully refreshed from Google Patents.
US2325040A
Expired / Lapsed
US
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Lubricating composition
Assignee: Wyeth Holdings LLC
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Filing: 1941-05-20
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Granted: 1943-07-27
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Expires: 1961-05-20
Abstract
No abstract record available.
Inventors
- 👤 Cook Elmer William
- 👤 Bradley Theodore Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:24
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2221/00; C10M2221/04; C10N; C10N2030/00; C10N2030/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-07-26 | 1947-01-25 | 1947-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-26 | 1951-01-25 | 1951-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-26 | 1955-01-25 | 1955-07-27 | $7700.00 | Window Closed / Lapsed |