US1074306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential manometer.
Assignee: Individual
•
Filing: 1911-07-11
•
Granted: 1913-09-30
•
Expires: 1931-07-11
Abstract
No abstract record available.
Inventors
- 👤 Franz Emil Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:28
CPC Classifications
G; G01; G01L; G01L13/00; G01L13/02; G01L13/025
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) | 1916-09-29 | 1917-03-31 | 1917-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-09-29 | 1921-03-31 | 1921-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-09-29 | 1925-03-31 | 1925-09-30 | $7700.00 | Window Closed / Lapsed |