US2963979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porcelain lined centrifugal pumps
Assignee: Indiana General Corp
•
Filing: 1958-01-13
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Granted: 1960-12-13
•
Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Charles E Eisenmann
- 👤 Clarence A Brooks
- 👤 Katransky Stephen
- 👤 Joseph J Nemeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:22
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/426; F04D29/70; F04D29/708
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |