Patent US1899764A successfully refreshed from Google Patents.
US1899764A
Expired / Lapsed
US
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Gas-measuring device
Assignee: Individual
•
Filing: 1929-12-02
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Granted: 1933-02-28
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Expires: 1949-12-02
Abstract
No abstract record available.
Inventors
- 👤 Adolph W Machlet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:52
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22
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) | 1936-02-28 | 1936-08-29 | 1937-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-28 | 1940-08-29 | 1941-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-28 | 1944-08-29 | 1945-02-28 | $7700.00 | Window Closed / Lapsed |