US2384783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump for plastic concrete mixtures
Assignee: Chain Belt Co
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Filing: 1943-09-23
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Granted: 1945-09-11
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Expires: 1963-09-23
Abstract
No abstract record available.
Inventors
- 👤 Charles I Longenecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:21
CPC Classifications
F; F04; F04B; F04B7/00; F04B7/0042; F04B7/0046; F04B7/0084; F04B7/0088; Y; Y10; Y10S; Y10S417/00; Y10S417/90; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7559; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86646; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-09-10 | 1949-03-12 | 1949-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-10 | 1953-03-12 | 1953-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-10 | 1957-03-12 | 1957-09-11 | $7700.00 | Window Closed / Lapsed |