Patent US2214019A successfully refreshed from Google Patents.
Patent US2861910A successfully refreshed from Google Patents.
US2861910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters and laminates therefrom
Assignee: Millennium Petrochemicals Inc
•
Filing: 1954-08-31
•
Granted: 1958-11-25
•
Expires: 1974-08-31
Abstract
No abstract record available.
Inventors
- 👤 Christian W Johnston
- 👤 Robert A Meara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:22
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/3162; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3594
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A COMPOSITION COMPRISING (A) A POLYESTER PRODUCT PREPARED BY REACTING AN UNSATURATED ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENICALLY UNSATURATED ALIPHATIC ORGANIC DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF, WITH A MIXTURE OF SATURATED BRANCHED CHAIN ALIPHATIC GLYCOLS HAVING A TOTAL OF AT LEAST TEN CARBON ATOMS PER MOLECULE, WITH ONLY CARBON ATOMS IN THE SKELETAL CHAIN, AT LEAST ONE C2 BRANCH PER MOLECULE, AND IN WHICH THE TERMINAL HYDROXYL GROUPS ARE SEPARATED BY AT LEAST SIX CARBON ATOMS, AND (B) STYRENE.
Claim 2
Dependent Claim
82 words
A COMPOSITION COMPRISING (A) A POLYESTER PRODUCT PREPARED BY REACTING AN UNSATURATED ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENICALLY UNSATURATED ALIPHATIC ORGANIC DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF, WITH A MIXTURE OF SATURATED BRANCHED CHAIN ALIPHATIC GLYCOLS HAVING A TOTAL OF AT LEAST TEN CARBON ATOMS PER MOLECULE, WITH ONLY CARBON ATOMS IN THE SKELETAL CHAIN, AT LEAST ONE C2 BRANCH PER MOLECULE, AND IN WHICH THE TERMINAL HYDROXYL GROUPS ARE SEPARATED BY AT LEAST SIX CARBON ATOMS, AND (B) STYRENE.
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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |