US2898492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of cooling beam transmitting windows
Assignee: General Electric Co
•
Filing: 1955-12-13
•
Granted: 1959-08-04
•
Expires: 1975-12-13
Abstract
No abstract record available.
Inventors
- 👤 David B Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:01
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/02; H01J5/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB277347A
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AT111958B
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US2053002A
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US1942060A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |