Patent US2678324A successfully refreshed from Google Patents.
US2678324A
Expired / Lapsed
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Polymers having a naphthalene-type nucleus and a plurality of terminal functional groups
Assignee: Emery Oleochemicals LLC
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Filing: 1951-06-16
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Granted: 1954-05-11
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Expires: 1971-06-16
Abstract
No abstract record available.
Inventors
- 👤 Charles G Goebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:40
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/347; C07C51/353
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
A COMPOSITION OF MATTER WHICH HAS AT LEAST TWO FUNCTIONAL TERMINAL GROUPS, SAID COMPOSITION COMPRISING: THE PRODUCT OF A FRIEDEL-CRAFTS SYNTHESIS WHEREIN EACH MOLE OF AN AROMATIC COMPOUND HAVING AT LEAST TWO CONJUGATED BENZENE RINGS IS COMBINED WITH AT LEAST TWO MOLES OF HALOGENERATED ALIPHATIC COMPOUND OF AT LEAST ONE OF THE CLASSES OF THE GROUP CONSISTING OF: CARBOXYLIC ACIDS, ESTERS, AMIDES AND NUTRILES, THE SAID HALOGENERATED ALIPHATIC COMPOUNDS HAVING A CHAIN LENGTH OF 9-24 CARBON ATOMS.
Claim 2
Dependent Claim
77 words
A COMPOSITION OF MATTER WHICH HAS AT LEAST TWO FUNCTIONAL TERMINAL GROUPS, SAID COMPOSITION COMPRISING: THE PRODUCT OF A FRIEDEL-CRAFTS SYNTHESIS WHEREIN EACH MOLE OF AN AROMATIC COMPOUND HAVING AT LEAST TWO CONJUGATED BENZENE RINGS IS COMBINED WITH AT LEAST TWO MOLES OF HALOGENERATED ALIPHATIC COMPOUND OF AT LEAST ONE OF THE CLASSES OF THE GROUP CONSISTING OF: CARBOXYLIC ACIDS, ESTERS, AMIDES AND NUTRILES, THE SAID HALOGENERATED ALIPHATIC COMPOUNDS HAVING A CHAIN LENGTH OF 9-24 CARBON ATOMS.
Claim 3
Dependent Claim
29 words
AS A COMPOSITION OF MATTER, THE PRODUCT OF A FRIEDEL-CRAFTS SYNTHESIS OF NAPHTHALENE AND CHLOROSTEARIC ACID WHEREIN EACH MOLE OF NAPHTHALENE IS COMBINED WITH TWO MOLES OF CHLOROSTEARIC ACID.
Claim 4
Dependent Claim
29 words
AS A COMPOSITION OF MATTER, THE PRODUCT OF A FRIEDEL-CRAFTS SYNTHESIS OF NAPHTHALENE AND CHLOROSTEARIC ACID WHEREIN EACH MOLE OF NAPHTHALENE IS COMBINED WITH TWO MOLES OF CHLOROSTEARIC ACID.
References Cited (Backward Citations)
US2475916A
Cited
US2573433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |