US3249619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbamate esters of trichloro and tetrachloro pyridine
Assignee: Dow Chemical Co
•
Filing: 1964-07-24
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Granted: 1966-05-03
•
Expires: 1984-07-24
Abstract
No abstract record available.
Inventors
- 👤 Johnston Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:13
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; A; A01; A01N; A01N47/00; A01N47/08; A01N47/10; A01N47/18; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A CARBAMATE ESTER HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
A CARBAMATE ESTER HAVING 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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |