US2833747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxidized hydrocarbon resins
Assignee: FMC Corp
•
Filing: 1954-10-20
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Granted: 1958-05-06
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Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Frank P Greenspan
- 👤 Jr Rupert E Light
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:17
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/027; C08F; C08F8/00; C08F8/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
AN EPOXIDIZED POLYMERIC OLEFINIC HYDROCARBON RESIN OBTAINED BY THE POLYMERIZATION OF UNSATURATED ALICYCLIC FRACTIONS OF PETROLEUM, SAID RESIN HAVING AN AVERAGE MOLECULAR WEIGHT OF 150 TO 250,000 AND CONTAINING AT LEAST 1% BY WEIGHT OXIRANE OXYGEN.
Claim 2
Dependent Claim
36 words
AN EPOXIDIZED POLYMERIC OLEFINIC HYDROCARBON RESIN OBTAINED BY THE POLYMERIZATION OF UNSATURATED ALICYCLIC FRACTIONS OF PETROLEUM, SAID RESIN HAVING AN AVERAGE MOLECULAR WEIGHT OF 150 TO 250,000 AND CONTAINING AT LEAST 1% BY WEIGHT OXIRANE OXYGEN.
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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |