US2946910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared image converter tubes
Assignee: Siemens Schweiz AG
•
Filing: 1954-11-09
•
Granted: 1960-07-26
•
Expires: 1974-11-09
Abstract
No abstract record available.
Inventors
- 👤 Spinnler Wilhelm
- 👤 Schachen Bonstetten
- 👤 Bruhin Joseph
- 👤 Linder Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:15
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/501
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2417061A
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US2600121A
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US2506018A
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US2487665A
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US2803770A
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US2841728A
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US2681420A
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US2675495A
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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) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |