US3110748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier
Assignee: Hankscraft Co
•
Filing: 1961-06-26
•
Granted: 1963-11-12
•
Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Myklebust Paal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:40
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/12; F24F6/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH29844A
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US1812356A
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US1957316A
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US1946521A
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US2022415A
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US2028444A
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US2149921A
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US2417126A
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US2766027A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |