US3674838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl carbamyloxy carboxylates
Assignee: NL SPENCER KELLOG Inc
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Filing: 1969-06-05
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Granted: 1972-07-04
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Expires: 1989-06-05
Abstract
Abstract Unsaturated carbamyloxy carboxylates of the formula: WHEREIN R1 is hydrogen, halogen, or a monovalent hydrocarbon radical of one to eight carbon atoms, and R2 is a divalent hydrocarbon radical of one to 12 carbon atoms, and R3 is a lower alkyl radical of one to eight carbon atoms, or, more preferably, hydrogen. These monomers are useful for preparing a variety of addition polymers.
Inventors
- 👤 John David Nordstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:06
CPC Classifications
C; C07; C07C; C07C271/00; C07C271/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
18 words
A carbamoyloxy carboxylate according to claim 1 wherein R1 is a monovalent alkyl, aryl, or aralkyl hydrocarbon radical.
Claim 2
Dependent Claim
24 words
The carbamyloxy carboxylate of claim 1, wherein R1 is hydrogen or a lower alkyl radical, R2 is an alkylene radical, and R3 is hydrogen.
Claim 3
Dependent Claim
10 words
The carbamyloxy carboxylate of claim 3, wherein R2 is ethylene.
Claim 4
Dependent Claim
7 words
2-Carbamyloxy ethyl acrylate according to claim 1.
Claim 5
Dependent Claim
7 words
2-Carbamyloxy ethyl methacrylate according to claim 1.
Claim 6
Dependent Claim
7 words
4-Carbamyloxy butyl acrylate according to claim 1.
Claim 7
Dependent Claim
7 words
4-Carbamyloxy butyl methacrylate according to claim 1.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |