Patent US3048613A successfully refreshed from Google Patents.
US3048613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organo-phosphorus compounds and process of making same
Assignee: Uniroyal Inc
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Filing: 1960-05-24
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Granted: 1962-08-07
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Expires: 1980-05-24
Abstract
No abstract record available.
Inventors
- 👤 Elbert C Ladd
- 👤 Merlin P Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:08
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4062; C07F9/4065; C10; C10M; C10M137/00; C10M137/12; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/167; C23F11/1676; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/047; C10M2223/06; C10M2223/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
THE PROCESS WHICH COMPRISES EFFECTING ADDITIONREACTION OF A DIESTER OF PHOSPHOROUS ACID AND AN ARYL ISOCYANATE IN THE PRESENCE OF A BASIC CATALYST.
Claim 2
Dependent Claim
23 words
THE PROCESS WHICH COMPRISES EFFECTING ADDITIONREACTION OF A DIESTER OF PHOSPHOROUS ACID AND AN ARYL ISOCYANATE IN THE PRESENCE OF A BASIC CATALYST.
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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |