US3026910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orifice plate installation
Assignee: DTE Energy Co
•
Filing: 1958-07-28
•
Granted: 1962-03-27
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Charles E Cawker
- 👤 Gould Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:24
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/40; G01F1/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US375054A
Cited
US392406A
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US2732229A
Cited
US797027A
Cited
US1912993A
Cited
US2520089A
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US2550844A
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US2661768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |