US3177535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam furnace with low beam source
Assignee: Stauffer Chemical Co
•
Filing: 1963-02-21
•
Granted: 1965-04-13
•
Expires: 1983-02-21
Abstract
No abstract record available.
Inventors
- 👤 Charles W Hanks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:49
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C22B9/22; C22B9/228; H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; Y; Y10; Y10S; Y10S164/00; Y10S164/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
AN ELECTRON BEAM FURNACE COMPRISING, AN EVACUATED ENCLOSURE ADAPTED TO CONTAIN A MATERIAL WHICH HAS A SURFACE TO BE TREATED BY ELECTRON BOMBARDMENT, MEANS WITHIN SAID ENCLOSURE ADJACENT THE MATERIAL TO BE TREATED AND BELOW THE SURFACE THEREOF FOR GENERATING AN ELONGATED RIBBON-SHAPED ELECTRON BEAM, MEANS DIRECTING THE ELECTRON BEAM IN A PATH AWAY FROM THE SURFACE OF THE MATERIAL TO BE TREATED, MEANS ON OPPOSITE SIDES OF THE MATERIAL TO BE TREATED FOR GENERATING A MAGNETIC FIELD ADJACENT THE SURFACE OF THE MATERIAL TO BE TREATED AND IN THE
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |