US2812141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for motor driven vent
Assignee: SAN LORENZO NURSERY Co IN
•
Filing: 1955-01-03
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Granted: 1957-11-05
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Expires: 1975-01-03
Abstract
No abstract record available.
Inventors
- 👤 Robert H Sueda
- 👤 Daniel S Shinoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:42
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/0001; F24F11/50; F24F11/61; F24F11/70; F24F11/72; F24F11/88; F24F11/30; F24F2110/00; F24F2110/10; F24F2110/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1043616A
Cited
US1820764A
Cited
US1962884A
Cited
US2522222A
Cited
US2580122A
Cited
US2584691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |