US2911599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attenuation for traveling-wave tubes
Assignee: International Standard Electric Corp
•
Filing: 1954-04-14
•
Granted: 1959-11-03
•
Expires: 1974-04-14
Abstract
No abstract record available.
Inventors
- 👤 Klein Werner
- 👤 Friz Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:34
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/08; H01J23/087; H01J23/0876; B; B05; B05D; B05D3/00; B05D3/14; B05D3/141; B05D3/142; B05D3/144; C; C08; C08G; C08G81/00; C08G81/02; C08G81/021; C08G81/022; C08J; C08J7/00; C08J7/04; C08J7/0427; H01J23/06; H01J23/065; H01J23/083; H01J23/16; H01J23/24; H01J23/26; H01J23/30; H01J23/36; H01J23/40; H01J23/42; H01J23/48; H01J23/50; H01J25/00; H01J25/34; H01J25/36; H01J25/38; H01J25/50; H01P; H01P5/00; H01P5/08; H01Q; H01Q11/00; H01Q11/02; H01Q11/08; H03; H03C; H03C3/00; H03C3/30; H03H; H03H2/00; H03H2/005; H03H2/006; H04; H04M; H04M19/00; H04M19/02; H04M5/00; H04M5/04; H04Q; H04Q3/00; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; C08J2429/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2413609A
Cited
US2636948A
Cited
US2673900A
Cited
US2660690A
Cited
US2730647A
Cited
US2585582A
Cited
US2779006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |