US2853565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit switch constructions
Assignee: Royal Mcbee Corp
•
Filing: 1957-03-28
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Granted: 1958-09-23
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Expires: 1977-03-28
Abstract
No abstract record available.
Inventors
- 👤 Ronald H Arthur
- 👤 Donald G Hebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:58
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/50; H01H13/56; H01H13/60; H01H1/00; H01H1/12; H01H1/36; H01H1/40; H01H1/403; H01H13/02; H01H13/023; H03; H03J; H03J5/00; H03J5/24; H03J5/26; H03J5/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2185071A
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US2732467A
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US1981987A
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US2232582A
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US2297819A
Cited
US2441614A
Cited
US2790858A
Cited
US2794081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |