Patent US2870524A successfully refreshed from Google Patents.
US2870524A
Expired / Lapsed
US
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Manufacture of waveguide components
Assignee: Allard Way Holdings Ltd
•
Filing: 1954-05-10
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Granted: 1959-01-27
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Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Kinnear John Alexande Christie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:00
CPC Classifications
H; H01; H01P; H01P11/00; H01P11/001; H01P11/002; C; C25; C25D; C25D1/00; C25D1/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/4998
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2381367A
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US2357950A
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US2559141A
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US2518892A
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US2447541A
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US2592614A
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US2528367A
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US2682500A
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US2696834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |