Patent US2621311A successfully refreshed from Google Patents.
US2621311A
Expired / Lapsed
US
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Mechanical movement
Assignee: Raytheon Co
•
Filing: 1947-12-26
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Granted: 1952-12-09
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Expires: 1967-12-26
Abstract
No abstract record available.
Inventors
- 👤 Rue Albert D La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:37
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/18; H01J23/20; H01J23/213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2408237A
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US2422465A
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US2418469A
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US2445282A
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US2428193A
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US2424496A
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US2459030A
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US2501196A
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US2542908A
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US2496887A
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US2450619A
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US2521545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |