US2530164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterworks valve position indicator operating mechanism
Assignee: Individual
•
Filing: 1948-04-03
•
Granted: 1950-11-14
•
Expires: 1968-04-03
Abstract
No abstract record available.
Inventors
- 👤 Elmer D Harshbarger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:31
CPC Classifications
F; F16; F16K; F16K37/00; F16K37/0008; F16K37/0016; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8242; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |