US2844618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphosphonates
Assignee: Monsanto Chemicals Ltd
•
Filing: 1954-06-25
•
Granted: 1958-07-22
•
Expires: 1974-06-25
Abstract
No abstract record available.
Inventors
- 👤 John H Johnson
- 👤 Joseph E Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:17
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4025; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A LIQUID MIXTURE OF ADDUCTS IN WHICH ADDUCTS THERE ARE CHEMICALLY COMBINED FROM 2 TO 50 MOLES OF AN ALKYL VINYLPHOSPHONATE IN WHICH THE ALKYL RADICAL HAS FROM 1 TO 8 CARBON ATOMS WITH 1 MOLE OF A COMPOUND WHICH IS A SOLVENT FOR SAID PHOSPHONATE AND WHICH IS SELECTED FROM THE CLASS CONSISTING OF ALKYL AND DIALKYL BENZENES HAVING FROM 1 TO 3 CARBON ATOMS IN THE ALKYL RADICAL, NORMALLY LIQUID ALKYL PHOSPHITES HAVING FROM 1 TO 8 CARBON ATOMS IN THE ALKYL RADICAL AND HALOGENATED ALKANES HAVING FROM 1 TO 2 CARBON ATOMS AND CONTAINING AT LERAST 3 HALOGEN ATOMS ATTACHED TO THE SAME CARBON ATOM.
Claim 2
Dependent Claim
108 words
A LIQUID MIXTURE OF ADDUCTS IN WHICH ADDUCTS THERE ARE CHEMICALLY COMBINED FROM 2 TO 50 MOLES OF AN ALKYL VINYLPHOSPHONATE IN WHICH THE ALKYL RADICAL HAS FROM 1 TO 8 CARBON ATOMS WITH 1 MOLE OF A COMPOUND WHICH IS A SOLVENT FOR SAID PHOSPHONATE AND WHICH IS SELECTED FROM THE CLASS CONSISTING OF ALKYL AND DIALKYL BENZENES HAVING FROM 1 TO 3 CARBON ATOMS IN THE ALKYL RADICAL, NORMALLY LIQUID ALKYL PHOSPHITES HAVING FROM 1 TO 8 CARBON ATOMS IN THE ALKYL RADICAL AND HALOGENATED ALKANES HAVING FROM 1 TO 2 CARBON ATOMS AND CONTAINING AT LERAST 3 HALOGEN ATOMS ATTACHED TO THE SAME CARBON ATOM.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |