Patent US2731450A successfully refreshed from Google Patents.
US2731450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting resins
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-11-01
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Granted: 1956-01-17
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Expires: 1971-11-01
Abstract
No abstract record available.
Inventors
- 👤 George E Serniuk
- 👤 Welch Lester Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:40
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2089444A
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US2213423A
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US2274749A
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US2368538A
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US2510647A
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US2559062A
Cited
US2609363A
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US2626940A
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US2671774A
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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) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |