US2711137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical feed pump
Assignee: Individual
•
Filing: 1951-02-20
•
Granted: 1955-06-21
•
Expires: 1971-02-20
Abstract
No abstract record available.
Inventors
- 👤 Clifford B Moller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:36
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/16; F04B53/162; F04B53/164
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1670799A
Cited
US1565029A
Cited
US2202351A
Cited
US2191861A
Cited
US2219566A
Cited
US2326474A
Cited
US2405093A
Cited
US2572952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |