US2905093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resistant pump
Assignee: Union Carbide Corp
•
Filing: 1954-08-12
•
Granted: 1959-09-22
•
Expires: 1974-08-12
Abstract
No abstract record available.
Inventors
- 👤 Henry S Raub
- 👤 Joseph M Swidrak
- 👤 William W Palmquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:29
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB459468A
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US2480095A
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US2528210A
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US2555492A
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US2658454A
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US2741991A
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US2690131A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |