US1522082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-level control
Assignee: Vaporackumulator AB
•
Filing: 1923-01-08
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Granted: 1925-01-06
•
Expires: 1943-01-08
Abstract
No abstract record available.
Inventors
- 👤 Ruths Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:40
CPC Classifications
F; F01; F01K; F01K1/00; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0374; Y10T137/0379; Y10T137/2496; Y10T137/2514; Y10T137/2516; Y10T137/7287; Y10T137/7297; Y10T137/7303; Y10T137/7358; Y10T137/7365; Y10T137/7413; Y10T137/7439; Y10T137/7442; Y10T137/7494; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/8593; Y10T137/86292; Y10T137/87153; Y10T137/87161; Y10T137/877; Y10T137/87829; Y10T137/87837
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) | 1928-01-06 | 1928-07-07 | 1929-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-01-06 | 1932-07-07 | 1933-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-01-06 | 1936-07-07 | 1937-01-06 | $7700.00 | Window Closed / Lapsed |