Patent US1828458A successfully refreshed from Google Patents.
Patent US3014045A successfully refreshed from Google Patents.
US3014045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-halo-3-halomethyltetrahydropyran
Assignee: Union Carbide Corp
•
Filing: 1959-12-16
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Granted: 1961-12-19
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Expires: 1979-12-16
Abstract
No abstract record available.
Inventors
- 👤 Marcus Erich
- 👤 John T Fitzpatrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:04
CPC Classifications
C; C07; C07D; C07D309/00; C07D309/02; C07D309/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A PROCESS FOR PRODUCING HALOTETRAHYDROPYRANS OF THE FORMULA
Claim 2
Dependent Claim
8 words
A PROCESS FOR PRODUCING HALOTETRAHYDROPYRANS OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |