Patent US3238227A successfully refreshed from Google Patents.
US3238227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy derivatives and process of preparing the same
Assignee: Union Carbide Corp
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Filing: 1960-05-31
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Granted: 1966-03-01
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Samuel W Tinsley
- 👤 Donald L Macpeek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:31
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/10; C07D303/00; C07D303/02; C07D303/04; C07D303/08; C07D303/12; C07D303/18; C07D303/28; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A SUBSTITUTED 3-OXATRICYCLO (3.2.1.0**2,4)OCTANE SELECTED FROM THE GROUP CONSISTING OF 6-METHYLENE-3-OXATRICYCLO (3.2.1.0**2,4)OCTANE, 6,4-DIMETHYLENE - 3 - OXATRICYCLO(3.2.1. 0**2,4)OCTANE, 6-CHLOROMETHYL-3-OXATRICYCLO(3.2.1.0**2,4)OCTANE, TANE, 6,7-DICHLOROMETHYL-3-OXATRICYCLO(3.2.1.0**2,4)OCTANE, 6,7-DIMETHYLENE-3-OXATRICYCLO(3.2.1.0**2,4)OCTANE DIOXIDE, 5,6-EPOXY-4,7-METHANO-1-OXASPIRO(2.5)OCTANE AND A COMPOUND REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
31 words
A SUBSTITUTED 3-OXATRICYCLO (3.2.1.0**2,4)OCTANE SELECTED FROM THE GROUP CONSISTING OF 6-METHYLENE-3-OXATRICYCLO (3.2.1.0**2,4)OCTANE, 6,4-DIMETHYLENE - 3 - OXATRICYCLO(3.2.1. 0**2,4)OCTANE, 6-CHLOROMETHYL-3-OXATRICYCLO(3.2.1.0**2,4)OCTANE, TANE, 6,7-DICHLOROMETHYL-3-OXATRICYCLO(3.2.1.0**2,4)OCTANE, 6,7-DIMETHYLENE-3-OXATRICYCLO(3.2.1.0**2,4)OCTANE DIOXIDE, 5,6-EPOXY-4,7-METHANO-1-OXASPIRO(2.5)OCTANE AND A COMPOUND REPRESENTED BY THE FORMULA:
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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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |