US2622615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control device
Assignee: Individual
•
Filing: 1946-04-29
•
Granted: 1952-12-23
•
Expires: 1966-04-29
Abstract
No abstract record available.
Inventors
- 👤 Carl E Golden
- 👤 Oscar L Notley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:36
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0186; Y; Y10; Y10T; Y10T137/00; Y10T137/3367; Y10T137/3421; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7914
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) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |