US2846481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibition of polymerization of vinyl chloride by diaryl carbonates
Assignee: Monsanto Chemicals Ltd
•
Filing: 1955-12-07
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Granted: 1958-08-05
•
Expires: 1975-12-07
Abstract
No abstract record available.
Inventors
- 👤 Robert G Roth
- 👤 William F Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:46
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
AS A NEW COMPOSITION OF MATTER, MONOMERIC VINYL CHLORIDE CONTAINING A MINOR AMOUNT OF A DIARYL CARBONATE HAVING THE FORMULA
Claim 2
Dependent Claim
20 words
AS A NEW COMPOSITION OF MATTER, MONOMERIC VINYL CHLORIDE CONTAINING A MINOR AMOUNT OF A DIARYL CARBONATE 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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |