US2997419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold welding of polyester resins
Assignee: General Electric Co
•
Filing: 1956-10-18
•
Granted: 1961-08-22
•
Expires: 1976-10-18
Abstract
No abstract record available.
Inventors
- 👤 Elliott J Lawton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:30
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J2383/00; C08J2383/04; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS OF WELDING DISTINCT AND SEPARATE SECTIONS OF POLYESTERS, AT LEAST ONE OF SAID SECTIONS BEING SELFSUPPORTING, INTO AN INTEGRAL PIECE WITHOUT THE USE OF AN INTERMEDIATE LAYER WHICH COMPRISES PLACING SEPARATE SECTIONS OF A,B-ETHYLENICALLY UNSATURATED ALKYD RESINS IN INTIMATE AND DIRECT CONTACT WITH EACH OTHER PRIOR TO THEIR BEING CURED TO THE INSOLUBLE, INFUSIBLE STATE, AND TREATING THE CONTACTED SECTIONS WITH HIGH ENERGY IONIZING RADIATION UNTIL WELDING IS EFFECTED.
Claim 2
Dependent Claim
71 words
A PROCESS OF WELDING DISTINCT AND SEPARATE SECTIONS OF POLYESTERS, AT LEAST ONE OF SAID SECTIONS BEING SELFSUPPORTING, INTO AN INTEGRAL PIECE WITHOUT THE USE OF AN INTERMEDIATE LAYER WHICH COMPRISES PLACING SEPARATE SECTIONS OF A,B-ETHYLENICALLY UNSATURATED ALKYD RESINS IN INTIMATE AND DIRECT CONTACT WITH EACH OTHER PRIOR TO THEIR BEING CURED TO THE INSOLUBLE, INFUSIBLE STATE, AND TREATING THE CONTACTED SECTIONS WITH HIGH ENERGY IONIZING RADIATION UNTIL WELDING IS EFFECTED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |