Patent US2951024A successfully refreshed from Google Patents.
US2951024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irradiated polymers
Assignee: Bardal Inc
•
Filing: 1957-03-22
•
Granted: 1960-08-30
•
Expires: 1977-03-22
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:02
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/28; C08J2367/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR PRODUCING POLYESTER RESIN COMPOSITIONS HAVING IMPROVED HEAT RESISTANCE COMPRISING THE TREATMENT OF A COMPOSITION CONSISTING OF A LINEAR, SATURATED ALIPHATIC POLYESTER OF AT LEAST 4,000 MOLECULAR WEIGHT WITH AT LEAST ABOUT 5 MEGAREPS OF IRRADIATION USING AN ENERGY SOURCE OF AT LEAST ABOUT 100,000 ELECTRON VOLTS, SAID POLYESTER HAVING ESTER GROUPS IN THE LINEAR CHAIN THEREOF.
Claim 2
Dependent Claim
59 words
A PROCESS FOR PRODUCING POLYESTER RESIN COMPOSITIONS HAVING IMPROVED HEAT RESISTANCE COMPRISING THE TREATMENT OF A COMPOSITION CONSISTING OF A LINEAR, SATURATED ALIPHATIC POLYESTER OF AT LEAST 4,000 MOLECULAR WEIGHT WITH AT LEAST ABOUT 5 MEGAREPS OF IRRADIATION USING AN ENERGY SOURCE OF AT LEAST ABOUT 100,000 ELECTRON VOLTS, SAID POLYESTER HAVING ESTER GROUPS IN THE LINEAR CHAIN THEREOF.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |