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US2227095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge tube
Assignee: Individual
•
Filing: 1936-07-07
•
Granted: 1940-12-31
•
Expires: 1956-07-07
Abstract
No abstract record available.
Inventors
- 👤 Liebmann Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:51
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-12-31 | 1944-07-01 | 1944-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-31 | 1948-07-01 | 1948-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-31 | 1952-07-01 | 1952-12-31 | $7700.00 | Window Closed / Lapsed |