US2875244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dicarboxylic acids from dicyclopentadienes
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-12-13
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Granted: 1959-02-24
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Expires: 1975-12-13
Abstract
No abstract record available.
Inventors
- 👤 Jeffrey H Bartlett
- 👤 Robert S Brodkey
- 👤 Lewis W Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:32
CPC Classifications
C; C07; C07C; C07C61/00; C07C61/12; C07C61/125; C07C61/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A DICARBOXYLIC ACID CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
7 words
A DICARBOXYLIC ACID CORRESPONDING TO THE FORMULA
References Cited (Backward Citations)
US2181893A
Cited
US2395452A
Cited
US2437600A
Cited
US2567026A
Cited
US2749328A
Cited
US2727050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |