Patent US2844560A successfully refreshed from Google Patents.
US2844560A
Expired / Lapsed
US
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Polyesters from dicyclohexyladipic acid, copolymers thereof, and process of making same
Assignee: Millennium Petrochemicals Inc
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Filing: 1955-06-15
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Granted: 1958-07-22
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Expires: 1975-06-15
Abstract
No abstract record available.
Inventors
- 👤 Greenberg Harry
- 👤 Raymond W Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:21
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/423; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/199; C08G63/20; C08G63/52; C08G63/54; C08G63/553; C08G63/66; C08G63/668; C08G63/676; C09; C09D; C09D167/00; C09D167/06; C09J; C09J167/00; C09J167/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A POLYESTER CONTAINING UNITS OF THE FOLLOWING STRUCTURE
Claim 2
Dependent Claim
8 words
A POLYESTER CONTAINING UNITS OF THE FOLLOWING STRUCTURE
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |