US2888033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant pressure outlet valve
Assignee: Individual
•
Filing: 1954-06-18
•
Granted: 1959-05-26
•
Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Henry C Eickmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/0608; B; B05; B05B; B05B1/00; B05B1/30; B05B1/3006; G05D16/10; G05D16/103; G05D16/106; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7834
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE7769C
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US332568A
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US938372A
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US952410A
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US1406015A
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US1742323A
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GB434196A
Cited
US2312251A
Cited
US2322468A
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US2702048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |