US2745017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion producing mechanism
Assignee: Individual
•
Filing: 1945-11-28
•
Granted: 1956-05-08
•
Expires: 1965-11-28
Abstract
No abstract record available.
Inventors
- 👤 Frank F Oppenheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:42
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/26; H01J49/28; H01J49/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A CALUTRON TRANSMITTER COMPRISING WALLS DEFINING A CHAMBER HAVING AN EXIT, A PAIR OF ACCELERATING ELECTRODES DISPOSED OUTSIDE SAID CHAMBER ADJACENT SAID EXIT, AND AN ELECTRON-EMISSIVE CATHODE DISPOSED ADJACENT ONE END OF SAID CHAMBER, SAID CATHODE HAVING A PORTION CONCAVE WITH RESPECT TO SAID ELECTRODES FOR FORMING AN ELECTRON STREAM HAVING A CONCAVE CROSS-SECTION ADJACENT SAID EXIT.
Claim 2
Dependent Claim
57 words
A CALUTRON TRANSMITTER COMPRISING WALLS DEFINING A CHAMBER HAVING AN EXIT, A PAIR OF ACCELERATING ELECTRODES DISPOSED OUTSIDE SAID CHAMBER ADJACENT SAID EXIT, AND AN ELECTRON-EMISSIVE CATHODE DISPOSED ADJACENT ONE END OF SAID CHAMBER, SAID CATHODE HAVING A PORTION CONCAVE WITH RESPECT TO SAID ELECTRODES FOR FORMING AN ELECTRON STREAM HAVING A CONCAVE CROSS-SECTION ADJACENT SAID EXIT.
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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |