US3036992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amorphous aromatic polyester containing no aliphatic chain units
Assignee: General Electric Co
•
Filing: 1960-06-01
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Granted: 1962-05-29
•
Expires: 1980-06-01
Abstract
No abstract record available.
Inventors
- 👤 Fred F Holub
- 👤 Simon W Kantor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:21
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/19; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/421; H01B3/422; H01B3/423; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/14; H01G4/18; H05; H05B; H05B33/00; H05B33/12; H05B33/20; H05B33/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A SOLUABLE FUSIBLE, SUPERPOLYESTER HAVING AN INTRINSIC VISCOSITY OF AT LEAST 0.5 FORMED OF THE FOUR STRUCTURAL UNITS (1) P-PHENYLENE UNITS, (2) UNITS SELECTED FROM THE GROUUP CONSISTING OF O-PHENYLENE UNITS, M-PHENULENE UNITS AND O,O''-BIPHENYLENE UNITS, (3) ISOPHTHALATE UNITS, AND (4) TEREPHTHALATE UNITS, THE SUM OF (1), (2), (3) AND (4) EQUALLING 100 PERCENT OF THE TOTAL UNITS IN THE POLYMER MOLECULE, THE NUMBER OF UNITS OF (1) BEING FROM 25 TO 45 PERCENT OF THE TOTAL, THE NUMBER OF UNITS OF (2) BEING FROM 5 TO 25 PERCENT OF THE TOTAL, THE NUMBER OF UNITS OF (3) BEING FROM 20 TO 45 PERCENT OF THE TOTAL, THE NUMBER OF UNITS OF (4) BEING FROM 5 TO 30 PERCENT OF THE TOTAL, THE UNITS OF (1) AND (2) FORMING ESTER GROUPS WITH THE UNITS OF (3) AND (4) THE SUM OF (1) AND (2) BEING FROM 1 TO 1.05 TIMES THE SUM OF (3) AND (4), THE SUM OF (1) AND (4) BEING NO GREATER THAN 0.7 TIMES THE TOTAL NUMBER OF THE UNITS.
Claim 2
Dependent Claim
174 words
A SOLUABLE FUSIBLE, SUPERPOLYESTER HAVING AN INTRINSIC VISCOSITY OF AT LEAST 0.5 FORMED OF THE FOUR STRUCTURAL UNITS (1) P-PHENYLENE UNITS, (2) UNITS SELECTED FROM THE GROUUP CONSISTING OF O-PHENYLENE UNITS, M-PHENULENE UNITS AND O,O''-BIPHENYLENE UNITS, (3) ISOPHTHALATE UNITS, AND (4) TEREPHTHALATE UNITS, THE SUM OF (1), (2), (3) AND (4) EQUALLING 100 PERCENT OF THE TOTAL UNITS IN THE POLYMER MOLECULE, THE NUMBER OF UNITS OF (1) BEING FROM 25 TO 45 PERCENT OF THE TOTAL, THE NUMBER OF UNITS OF (2) BEING FROM 5 TO 25 PERCENT OF THE TOTAL, THE NUMBER OF UNITS OF (3) BEING FROM 20 TO 45 PERCENT OF THE TOTAL, THE NUMBER OF UNITS OF (4) BEING FROM 5 TO 30 PERCENT OF THE TOTAL, THE UNITS OF (1) AND (2) FORMING ESTER GROUPS WITH THE UNITS OF (3) AND (4) THE SUM OF (1) AND (2) BEING FROM 1 TO 1.05 TIMES THE SUM OF (3) AND (4), THE SUM OF (1) AND (4) BEING NO GREATER THAN 0.7 TIMES THE TOTAL NUMBER OF THE UNITS.
References Cited (Backward Citations)
US2595343A
Cited
US2954355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |