US2957425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump with packing gland
Assignee: Individual
•
Filing: 1958-08-07
•
Granted: 1960-10-25
•
Expires: 1978-08-07
Abstract
No abstract record available.
Inventors
- 👤 Perry I Nagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:23
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/04; F04D29/042; F04D29/08; F04D29/10; F04D29/14; F04D29/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US829017A
Cited
US1821772A
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US2179730A
Cited
US2250714A
Cited
US2300688A
Cited
US2504140A
Cited
US2536638A
Cited
US2658454A
Cited
US2626086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |