US2734667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grout pump
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:28
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/02; F04B1/00; F04B1/02; F04B15/00; F04B15/02; F04B15/023; F04B43/00; F04B43/02; F04B43/025; F04B43/026; F04B53/00; F04B53/10; F04B53/1002; F04B53/1005; F04B53/12; F04B53/125; F04B53/126; Y; Y10; Y10S; Y10S417/00; Y10S417/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US156279A
Cited
US169974A
Cited
US1648587A
Cited
US1871655A
Cited
US1991342A
Cited
US2295774A
Cited
US2461332A
Cited
US2609966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |