US3185671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acyloxymetallosulfophthalate containing dyeable polyesters
Assignee: Union Carbide Corp
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Filing: 1961-03-20
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Granted: 1965-05-25
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Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Christian F Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:23
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/688; C08G63/6884
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A LINEAR POLYESTER CONSISTING OF THE CONDENSATION PRODUCT OF (1) AN ALIPHATIC GLYCOL CONTAINING FROM 2 TO ABOUT 10 CARBON ATOMS, (2) FROM ABOUT 0.1 TO ABOUT 10 MOLE PERCENT, BASED ON THE TOTAL AMOUNT OF CARBOXYLIC ACID COMPOUNDS PRESENT, OF AN ACYLOXYMETALLOSULFOPHATHALATE REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
48 words
A LINEAR POLYESTER CONSISTING OF THE CONDENSATION PRODUCT OF (1) AN ALIPHATIC GLYCOL CONTAINING FROM 2 TO ABOUT 10 CARBON ATOMS, (2) FROM ABOUT 0.1 TO ABOUT 10 MOLE PERCENT, BASED ON THE TOTAL AMOUNT OF CARBOXYLIC ACID COMPOUNDS PRESENT, OF AN ACYLOXYMETALLOSULFOPHATHALATE REPRESENTED BY THE GENERAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |