Patent US3317542A successfully refreshed from Google Patents.
US3317542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoropyridines and derivatives
Assignee: Individual
•
Filing: 1965-03-23
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Granted: 1967-05-02
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Expires: 1985-03-23
Abstract
No abstract record available.
Inventors
- 👤 Robert N Haszeldine
- 👤 Road Lyme
- 👤 Banks Ronald Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:48
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/74; C07D213/61; C07D213/62; C07D213/63; C07D213/70; C07D213/76; C07D213/77; C07D213/78; C07D213/79
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
2,3,5,6-TETRAFLUORO-4-PROPENYLPYRIDINE.
Claim 2
Dependent Claim
1 words
2,3,5,6-TETRAFLUORO-4-PROPENYLPYRIDINE.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |