Patent US3357935A successfully refreshed from Google Patents.
US3357935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide compositions based on diamines derived from diphenyl oxide
Assignee: General Mills Inc
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Filing: 1965-06-01
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Granted: 1967-12-12
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Richard W Fulmer
- 👤 Edgar R Rogier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:16
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/34; C08L; C08L77/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
25 words
A POLYAMIDE RESIN COMPRISING THE REACTION PRODUCT OF POLYMERIC FAT ACIDS PREPARED FROM FAT ACIDS CONTAINING 8 TO 24 CARBON ATOMS AND P,P''-BIS(B-AMINOETHYL) DIPHENYL OXIDE.
Claim 2
Dependent Claim
25 words
A POLYAMIDE RESIN COMPRISING THE REACTION PRODUCT OF POLYMERIC FAT ACIDS PREPARED FROM FAT ACIDS CONTAINING 8 TO 24 CARBON ATOMS AND P,P''-BIS(B-AMINOETHYL) DIPHENYL OXIDE.
Claim 3
Dependent Claim
123 words
A POLYAMIDE COMPOSITION COMPRISING THE REACTION PRODUCT OF P,P''-BIS(B-AMINOETHYL) DIPHENYL OXIDE AND A MIXTURE OF (A) POLYMERIC FAT ACIDS PREPARED FROM FAT ACIDS CONTAINING 8 TO 24 CARBON ATOMS AND (B) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) R''''OOC-COOR'''' (B) R''''-OOC-R''-COO-R'''' (C) H2N(CH2)XCOOR (D) H-N<(-CO-(CH2)X-) WHERE R'' IS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON RADICALS HAVING FROM 1 TO 20 CARBON ATOMS, ALICYCLIC AND ALIPHATIC SUBSTITUTED ALICYCLIC HYDROCARBON RADICALS HAVING FROM 6 TO 20 CARBON ATOMS AND AROMATIC AND ALIPHATIC SUBSTITUTED AROMATIC HYDROCARBON RADICALS HAVING FROM 6 TO 20 CARBON ATOMS, R" IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL GROUPS HAVING FROM 1 TO 8 CARBON ATOMS AND X IS AN INTEGER FROM 2 TO 15.
Claim 4
Dependent Claim
123 words
A POLYAMIDE COMPOSITION COMPRISING THE REACTION PRODUCT OF P,P''-BIS(B-AMINOETHYL) DIPHENYL OXIDE AND A MIXTURE OF (A) POLYMERIC FAT ACIDS PREPARED FROM FAT ACIDS CONTAINING 8 TO 24 CARBON ATOMS AND (B) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) R''''OOC-COOR'''' (B) R''''-OOC-R''-COO-R'''' (C) H2N(CH2)XCOOR (D) H-N<(-CO-(CH2)X-) WHERE R'' IS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBON RADICALS HAVING FROM 1 TO 20 CARBON ATOMS, ALICYCLIC AND ALIPHATIC SUBSTITUTED ALICYCLIC HYDROCARBON RADICALS HAVING FROM 6 TO 20 CARBON ATOMS AND AROMATIC AND ALIPHATIC SUBSTITUTED AROMATIC HYDROCARBON RADICALS HAVING FROM 6 TO 20 CARBON ATOMS, R" IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL GROUPS HAVING FROM 1 TO 8 CARBON ATOMS AND X IS AN INTEGER FROM 2 TO 15.
References Cited (Backward Citations)
US2191556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |