Patent US2100291A successfully refreshed from Google Patents.
Patent US1148833A successfully refreshed from Google Patents.
US1148833A
Expired / Lapsed
US
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Measurement of the flow of gas in conduits or pipes.
Assignee: Individual
•
Filing: 1913-11-13
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Granted: 1915-08-03
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Expires: 1933-11-13
Abstract
No abstract record available.
Inventors
- 👤 Howard M Edmunds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:51
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1918-08-02 | 1919-02-01 | 1919-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-08-02 | 1923-02-01 | 1923-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-08-02 | 1927-02-01 | 1927-08-03 | $7700.00 | Window Closed / Lapsed |