US3025307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 5-bis (2, 3-epoxypropoxymethyl)-tetrahydrofuran
Assignee: Merck and Co Inc
•
Filing: 1958-09-10
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Granted: 1962-03-13
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Expires: 1978-09-10
Abstract
No abstract record available.
Inventors
- 👤 John D Garber
- 👤 Robert E Jones
- 👤 Harold C Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:02
CPC Classifications
C; C07; C07D; C07D407/00; C07D407/02; C07D407/12; C07D307/00; C07D307/02; C07D307/04; C07D307/10; C07D307/12; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/26
Claims Analysis
Total Claims: 0
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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) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |