US2535175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitroalkanephosphonates
Assignee: Uniroyal Inc
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Filing: 1949-05-11
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Granted: 1950-12-26
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Expires: 1969-05-11
Abstract
No abstract record available.
Inventors
- 👤 Pliny O Tawney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:21
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
THE PROCESS WHICH COMPRISES EFFECTING ADDITION REACTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY NITROALKANES WITH AN ESTER OF ETHENEPHOSPHONIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
29 words
THE PROCESS WHICH COMPRISES EFFECTING ADDITION REACTION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY NITROALKANES WITH AN ESTER OF ETHENEPHOSPHONIC ACID 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) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |