US2613609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressing machine such as centrifugal blower or pump
Assignee: Individual
•
Filing: 1947-12-30
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Granted: 1952-10-14
•
Expires: 1967-12-30
Abstract
No abstract record available.
Inventors
- 👤 Buchi Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:19
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/266; F01; F01D; F01D5/00; F01D5/02; F01D5/025; F04D29/18; F04D29/22; F04D29/2205; F04D29/2222; F04D29/2227; F04D29/60; F04D29/605; F05; F05D; F05D2300/00; F05D2300/10
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) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |