US2883737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: JR MICROWAVE SYSTEMS Inc
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Filing: 1953-04-21
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Granted: 1959-04-28
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Expires: 1973-04-21
Abstract
No abstract record available.
Inventors
- 👤 Wilson John Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:30
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/14; B23B27/16; B23B27/1666; B23B27/1674; Y; Y10; Y10T; Y10T407/00; Y10T407/11; Y10T407/116; Y10T407/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1056653A
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GB138040A
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GB169435A
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US1776335A
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US1854672A
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GB453173A
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US2392285A
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CH257171A
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FR968404A
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FR989307A
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FR1031998A
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FR1041370A
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US2675604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |