US2702865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron multiplier
Assignee: Texaco Inc
•
Filing: 1949-04-02
•
Granted: 1955-02-22
•
Expires: 1969-04-02
Abstract
No abstract record available.
Inventors
- 👤 Herzog Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:27
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1898080A
Cited
US2135615A
Cited
US2256300A
Cited
US2227030A
Cited
US2234801A
Cited
US2305179A
Cited
US2401734A
Cited
US2517404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-21 | 1958-08-23 | 1959-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-21 | 1962-08-23 | 1963-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-21 | 1966-08-23 | 1967-02-22 | $7700.00 | Window Closed / Lapsed |