US2658984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical radiator
Assignee: Heraeus Quarzschmelze GmbH
•
Filing: 1951-06-05
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Granted: 1953-11-10
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Expires: 1971-06-05
Abstract
No abstract record available.
Inventors
- 👤 Mohn Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:51
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/06; F; F26; F26B; F26B3/00; F26B3/28; F28; F28D; F28D7/00; F28D7/16; H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/045; H02; H02M; H02M1/00; H02M1/02; H02M1/04; H02M1/042; H02M1/045; Y; Y10; Y10S; Y10S65/00; Y10S65/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US606792A
Cited
US1032267A
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US1881241A
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US2030820A
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US2407379A
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US2375369A
Cited
US2596837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |