US3481588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier
Assignee: Lobb Humidifier Co
•
Filing: 1968-01-25
•
Granted: 1969-12-02
•
Expires: 1988-01-25
Abstract
No abstract record available.
Inventors
- 👤 Orville J Lobb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:13
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/06; Y; Y10; Y10S; Y10S261/00; Y10S261/15; Y10S261/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2554867A
Cited
US2910279A
Cited
US3074698A
Cited
US3189328A
Cited
US3385574A
Cited
US3315948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |