US2844164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow line poppet type check valve
Assignee: Tokheim Corp
•
Filing: 1955-09-19
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Granted: 1958-07-22
•
Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Elmer A Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:08
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7931; Y10T137/7934; Y10T137/794
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US40723A
Cited
US196368A
Cited
US1782238A
Cited
US1901982A
Cited
US2524951A
Cited
US2431437A
Cited
US2505992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |