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US1343072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brine-valve
Assignee: Individual
•
Filing: 1917-08-03
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Granted: 1920-06-08
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Expires: 1937-08-03
Abstract
No abstract record available.
Inventors
- 👤 Ackroyd Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:16
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/02; F25D3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/8593; Y10T137/86292; Y10T137/863; Y10T137/86308; Y10T137/86316
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) | 1923-06-08 | 1923-12-08 | 1924-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-06-08 | 1927-12-08 | 1928-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-06-08 | 1931-12-08 | 1932-06-08 | $7700.00 | Window Closed / Lapsed |