US2993880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linked maleic anhydride modified petroleum resin
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-08-14
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Granted: 1961-07-25
•
Expires: 1977-08-14
Abstract
No abstract record available.
Inventors
- 👤 Aldridge Clyde Lee
- 👤 Small Augustus Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:56
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553; C08F; C08F240/00; C08F8/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB407957A
Cited
US2142980A
Cited
US2230005A
Cited
US2404411A
Cited
US2468769A
Cited
US2634256A
Cited
US2662874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |