US2922002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level control
Assignee: Individual
•
Filing: 1958-03-10
•
Granted: 1960-01-19
•
Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Morris A Gilman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:46
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/02; F04D15/0209; F04D15/0218; E; E03; E03F; E03F5/00; E03F5/22; G; G05; G05D; G05D9/00; G05D9/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB533119A
Cited
US2302250A
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US2353740A
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GB571125A
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US2514630A
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US2598556A
Cited
US2628296A
Cited
US2716525A
Cited
US2814687A
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US2847528A
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US2856481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |