Patent US2873368A successfully refreshed from Google Patents.
US2873368A
Expired / Lapsed
US
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Electrical control apparatus
Assignee: Schneider Electric Buildings Americas Inc
•
Filing: 1955-05-03
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Granted: 1959-02-10
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Expires: 1975-05-03
Abstract
No abstract record available.
Inventors
- 👤 Oscar L Welker
- 👤 Lester F Hetchler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:35
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/2236; G05D23/2237
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2115858A
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US2093331A
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US2151752A
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US2267520A
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US2189402A
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US2234184A
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US2261153A
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US2318061A
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US2480713A
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US2505577A
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US2647252A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |