US1044969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for testing air or other gases.
Assignee: Individual
•
Filing: 1910-11-18
•
Granted: 1912-11-19
•
Expires: 1930-11-18
Abstract
No abstract record available.
Inventors
- 👤 Max Arndt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:18
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12
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) | 1915-11-19 | 1916-05-20 | 1916-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-11-19 | 1920-05-20 | 1920-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-11-19 | 1924-05-20 | 1924-11-19 | $7700.00 | Window Closed / Lapsed |