US2969324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphosulfurized detergent-inhibitor additive
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1958-02-20
•
Granted: 1961-01-24
•
Expires: 1978-02-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Carroll L Knapp
- 👤 Stephen L Wythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:00
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2421004A
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US2476972A
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US2476813A
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US2546552A
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US2623016A
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US2681891A
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US2736701A
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US2723235A
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US2767164A
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US2798045A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |