US3408880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary humidifier drive
Assignee: Skuttle Manufacturing Co
•
Filing: 1967-05-15
•
Granted: 1968-11-05
•
Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 Walter R Stiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:04
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19614; Y10T74/19633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2117873A
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US2682779A
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US2973659A
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US2774252A
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US3021831A
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US2952146A
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US3105371A
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US3203268A
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US3149626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |