US2576282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injector for injecting caustic or acid fluids
Assignee: Individual
•
Filing: 1947-06-28
•
Granted: 1951-11-27
•
Expires: 1967-06-28
Abstract
No abstract record available.
Inventors
- 👤 Russell J Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:55
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/10; F04F; F04F1/00; F04F1/02; F04F1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |