US2536995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump
Assignee: Johnson Service Co
•
Filing: 1945-07-26
•
Granted: 1951-01-02
•
Expires: 1965-07-26
Abstract
No abstract record available.
Inventors
- 👤 Harold F Hadley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:48
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/22; F04B49/24; F04B49/243; F04B39/00; F04B39/10; F04B39/102; F04B39/1073; F04B45/00; F04B45/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1992491A
Cited
US2217380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |