Patent US2798083A successfully refreshed from Google Patents.
US2798083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic ester lubricants
Assignee: Eastman Kodak Co
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Filing: 1954-02-03
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Granted: 1957-07-02
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Expires: 1974-02-03
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
- 👤 Gerald R Lappin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:20
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/02; C07C69/22; C07C69/28; C10; C10M; C10M105/00; C10M105/08; C10M105/32; C10M105/38; C10M2207/00; C10M2207/28; C10M2207/283; C10M2207/2835; C10N; C10N2020/00; C10N2020/01; C10N2020/02; C10N2030/00; C10N2030/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A SYNTHETIC LUBRICANT COMPRISING A DIESTER OF THE FORMULA
Claim 2
Dependent Claim
9 words
A SYNTHETIC LUBRICANT COMPRISING A DIESTER OF THE FORMULA
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) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |