US1185041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check-valve for sprinkler systems.
Assignee: Individual
•
Filing: 1915-03-17
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Granted: 1916-05-30
•
Expires: 1935-03-17
Abstract
No abstract record available.
Inventors
- 👤 John P Ashey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:15
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/365; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2657; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T137/7903
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) | 1919-05-30 | 1919-11-29 | 1920-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-05-30 | 1923-11-29 | 1924-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-05-30 | 1927-11-29 | 1928-05-30 | $7700.00 | Window Closed / Lapsed |