Patent US3370142A successfully refreshed from Google Patents.
US3370142A
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Condition detecting control with means to enable the system to return to its first position upon a slight change of condition
Assignee: LYNDON W BURCH
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Filing: 1964-09-23
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Granted: 1968-02-20
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Expires: 1984-09-23
Abstract
No abstract record available.
Inventors
- 👤 Lyndon W Burch
- 👤 Hadley K Burch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:57
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213; E; E04; E04G; E04G21/00; E04G21/14; E04G21/16; E04G21/22; H01; H01H; H01H35/00; H01H35/02; H01H35/027; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |