US2081315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant level apparatus
Assignee: Individual
•
Filing: 1934-01-26
•
Granted: 1937-05-25
•
Expires: 1954-01-26
Abstract
No abstract record available.
Inventors
- 👤 Weber Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:14
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/06; F16; F16N; F16N19/00; F16N19/006; F01M11/062; F01M11/065; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7498; Y10T137/7501; Y10T137/8158; Y10T137/8342
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) | 1940-05-24 | 1940-11-23 | 1941-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-05-24 | 1944-11-23 | 1945-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-05-24 | 1948-11-23 | 1949-05-25 | $7700.00 | Window Closed / Lapsed |