US2844582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heterocyclic aryl phosphorus esters
Assignee: Individual
•
Filing: 1956-07-17
•
Granted: 1958-07-22
•
Expires: 1976-07-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles F Raley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:29
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/12; C07F9/547; C07F9/553; C07F9/576; C07F9/58; C07F9/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIPHENYL 3-PYRIDYL PHOSPHATE, DIPHENYL 8-QUINOLYL PHOSPHATE, AND DINAPHTHYL 3-PYRIDYL PHOSPHATE.
Claim 2
Dependent Claim
18 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIPHENYL 3-PYRIDYL PHOSPHATE, DIPHENYL 8-QUINOLYL PHOSPHATE, AND DINAPHTHYL 3-PYRIDYL PHOSPHATE.
References Cited (Backward Citations)
US2686783A
Cited
US2769013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |