Patent US3007900A successfully refreshed from Google Patents.
US3007900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polybibenzoate/alicyclic dicarboxylates
Assignee: Akzo Nobel UK PLC
•
Filing: 1958-07-28
•
Granted: 1961-11-07
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Marion R Lytton
- 👤 Edward A Wielicki
- 👤 Robert D Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:43
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/181; C08G63/185; C08G63/199
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A FILAMENT AND FILM FORMING LINEAR INTERPOLYESTER MELTING ABOVE 140*C. OF REACTANTS CONSISTING ESSENTIALLY OF A MIXTURE OF FROM 30 TO 90 MOL % OF P,P'' BIBENZOIC ACID AND FROM 70 TO 10 MOL PERCENT OF AN ALICYCLIC ACID, AND AT LEAST ABOUT 2 MOLS OF A GLYCOL PER MOL OF MIXED ACIDS, SAID GLYCOLS SELECTED FROM THE GROUP CONSISTING OF A GLYCOL HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
67 words
A FILAMENT AND FILM FORMING LINEAR INTERPOLYESTER MELTING ABOVE 140*C. OF REACTANTS CONSISTING ESSENTIALLY OF A MIXTURE OF FROM 30 TO 90 MOL % OF P,P'' BIBENZOIC ACID AND FROM 70 TO 10 MOL PERCENT OF AN ALICYCLIC ACID, AND AT LEAST ABOUT 2 MOLS OF A GLYCOL PER MOL OF MIXED ACIDS, SAID GLYCOLS SELECTED FROM THE GROUP CONSISTING OF A GLYCOL HAVING 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) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |