Patent US3206494A successfully refreshed from Google Patents.
US3206494A
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Cyclic phosphonitriles and process for preparing same
Assignee: Albright and Wilson Mfg Ltd
•
Filing: 1962-11-19
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Granted: 1965-09-14
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Lund Lars Gunnar
- 👤 Dye Peter Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:24
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/025; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6581; C07F9/65812; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/3889
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A CYCLIC PHOSPHONITRILAMIDATE OF THE FORMULA
Claim 2
Dependent Claim
6 words
A CYCLIC PHOSPHONITRILAMIDATE OF THE FORMULA
Claim 3
Dependent Claim
6 words
A CYLCIC PHOSPHONITRILAMIDATE OF THE FORMULA
Claim 4
Dependent Claim
6 words
A CYLCIC PHOSPHONITRILAMIDATE OF THE FORMULA
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |