US2858259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron irradiation of preformed polyamide resin
Assignee: General Electric Co
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Filing: 1952-12-06
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Granted: 1958-10-28
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Expires: 1972-12-06
Abstract
No abstract record available.
Inventors
- 👤 Elliott J Lawton
- 👤 Arthur M Bueche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:29
CPC Classifications
B; B29; B29C; B29C71/00; B29C71/04; D; D06; D06M; D06M10/00; D06M10/008; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0877; B29K; B29K2077/00; B29K2677/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE PROCESS FOR REDUCING THE SOLUBILITY OF A PREFORMED POLYAMIDE RESIN IN HOT PARA-CRESOL AND REDUCING ITS SUSCEPTIBILITY TO PLASTIC FLOW AT TEMPERATURES ABOVE 250*C., WHICH PROCESS COMPRISES IRRADIATING THE PREFORMED POLYAMIDE RESIN WITH PRIMARY RADIATION CONSISTING ESSENTIALLY OF HIGH ENERGY ELECTRONS EMANATING FROM A HIGH VOLTAGE ACCELERATING APPARATUS IN WHICH THE ELECTRONS HAVE ENERGIES OF FROM ABOUT 50,000 TO 20,000,000 ELECTRON VOLTS, SAID IRRADIATION BEING CARRIED OUT WITHIN THE DOSE RANGE OF FROM 5X10**7 REP. TO 5X108 REP.
Claim 2
Dependent Claim
79 words
THE PROCESS FOR REDUCING THE SOLUBILITY OF A PREFORMED POLYAMIDE RESIN IN HOT PARA-CRESOL AND REDUCING ITS SUSCEPTIBILITY TO PLASTIC FLOW AT TEMPERATURES ABOVE 250*C., WHICH PROCESS COMPRISES IRRADIATING THE PREFORMED POLYAMIDE RESIN WITH PRIMARY RADIATION CONSISTING ESSENTIALLY OF HIGH ENERGY ELECTRONS EMANATING FROM A HIGH VOLTAGE ACCELERATING APPARATUS IN WHICH THE ELECTRONS HAVE ENERGIES OF FROM ABOUT 50,000 TO 20,000,000 ELECTRON VOLTS, SAID IRRADIATION BEING CARRIED OUT WITHIN THE DOSE RANGE OF FROM 5X10**7 REP. TO 5X108 REP.
References Cited (Backward Citations)
US2130948A
Cited
GB665262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |