Patent FR861408A successfully refreshed from Google Patents.
US1438751A
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Conduit for thermotemperature circuits of grain tanks
Assignee: Individual
•
Filing: 1918-07-06
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Granted: 1922-12-12
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Expires: 1938-07-06
Abstract
No abstract record available.
Inventors
- 👤 Isles Leonard H Des
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:34
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/06; F; F16; F16B; F16B2200/00; F16B2200/69; F16B2200/73; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T403/00; Y10T403/57; Y10T403/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1925-12-11 | 1926-06-12 | 1926-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-12-11 | 1930-06-12 | 1930-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-12-11 | 1934-06-12 | 1934-12-12 | $7700.00 | Window Closed / Lapsed |