Patent US2520101A successfully refreshed from Google Patents.
US2520101A
Expired / Lapsed
US
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Sulfurized unsaturated ketones
Assignee: ExxonMobil Oil Corp
•
Filing: 1945-03-29
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Granted: 1950-08-22
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Expires: 1965-03-29
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand P Otto
- 👤 Ronald E Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:32
CPC Classifications
C; C07; C07D; C07D331/00; C07D331/02; C10; C10M; C10M135/00; C10M135/32; C10M135/34; C10M2219/00; C10M2219/02; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
AS A NEW COMPOSITION OF MATTER, A SULFURIZED ALIPHATIC KETONE SELECTED FROM THE SULFURIZED ALIPHATIC KETONES REPRESENTED BY THE GENERAL FORMULAE:
Claim 2
Dependent Claim
21 words
AS A NEW COMPOSITION OF MATTER, A SULFURIZED ALIPHATIC KETONE SELECTED FROM THE SULFURIZED ALIPHATIC KETONES REPRESENTED BY THE GENERAL FORMULAE:
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) | 1953-08-21 | 1954-02-20 | 1954-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-21 | 1958-02-20 | 1958-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-21 | 1962-02-20 | 1962-08-22 | $7700.00 | Window Closed / Lapsed |