US2582259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for building up and reducing pressure
Assignee: ZEPHYR LAUNDRY MACHINERY Co
•
Filing: 1944-11-04
•
Granted: 1952-01-15
•
Expires: 1964-11-04
Abstract
No abstract record available.
Inventors
- 👤 Koplin Harry
- 👤 Arthur R Slate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:35
CPC Classifications
D; D06; D06F; D06F47/00; D06F47/06; F; F16; F16K; F16K31/00; F16K31/12; F16K31/122; F16K31/36; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/85986; Y10T137/85994; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2022018A
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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) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |