US2680109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Allyl-2, 3-epoxybutyrate
Assignee: Columbia Southern Chemical Corp
•
Filing: 1947-02-28
•
Granted: 1954-06-01
•
Expires: 1967-02-28
Abstract
No abstract record available.
Inventors
- 👤 Henry C Stevens
- 👤 Frederick E Kung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:41
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/16; C07D303/48; C08; C08F; C08F118/00; C08F118/02; C08F118/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
7 words
A POLYMER OF ALLYL 2,3 EPOXY BUTYRATE.
References Cited (Backward Citations)
US2189529A
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US2160943A
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US2399214A
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US2470324A
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US2450234A
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US2403344A
Cited
US2524432A
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US2476922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |