US3476673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier with electrolytic protection
Assignee: Skuttle Manufacturing Co
•
Filing: 1966-08-30
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Granted: 1969-11-04
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Expires: 1986-08-30
Abstract
No abstract record available.
Inventors
- 👤 Walter R Stiles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:02
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; C; C23; C23F; C23F14/00; F24F6/06; Y; Y10; Y10S; Y10S261/00; Y10S261/34; Y10S261/46
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) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |